March 2026 Newsletter Recap: The Right Access Door for Any Job– Every Time

Posted on by Ductmate Industries

The Right Access Door for Any Job– Every Time

Ductmate’s access doors make inspection, cleaning, and maintenance faster and easier.

Many of our doors are designed for quick installation with time-saving features such as self‑adhesive cut templates, no frames to install, and effortless opening/closing that doesn’t require special tools, helping you to save time in the field.

Whether you’re working with rectangular or round ductwork, our variety of Sandwich®-style, ULtimate™, and square-framed access doors ensures you’ll have the right access door for any job– every time.

Sandwich-Style Doors:

Sandwich-style doors are available in insulated and uninsulated options. They are extremely versatile and can be used for a wide range of applications, including high-temperature applications, duct cleaning, or viewing ultraviolet lights in air handling units.

Our Sandwich-style doors include: Rectangular Duct Sandwich Door, Round Duct Sandwich Door, F1-High Temp Sandwich Door, F2 Grease Duct Sandwich Door, Observation Sandwich Door, Single-Pane Sandwich Observation Door, AHU Viewport Access Panel, Clean-Out Sandwich Door, and Circular Clean-Out Sandwich Door.

UL-Listed ULtimate Doors:

Our ULtimate grease duct access doors provide easy access to high-temperature air ducts and grease duct systems and were designed for applications requiring UL 1978 listing. Unlike shop-fabricated and inferior, light-gauge grease duct door substitutes, this high-performance lineup is designed to meet the challenges. They are the most extensively engineered, tested, and ruggedly constructed doors available in the industry.

Included in this lineup are: ULtimate Door (Sandwich-style), ULtimate Door Round (Sandwich-style for round duct), and ULtimate Door II (weld-on).

Design and engineering choices when choosing a grease duct access door can mean the difference between life and death for building occupants and first responders.  When life safety and building performance are your number one priority, Ductmate’s ULtimate grease duct access doors are superior to the competition.

Square-Framed Doors:

Square-Framed access doors are a low-pressure door for rectangular ducts that provide easy access to air ducts and units. Developed as an inexpensive alternative to our Sandwich-style access doors for low-pressure applications, Square-Framed doors meet SMACNA requirements for low-pressure doors. They are insulated with 1” high-density fiberglass insulation and are double gasketed with a closed-cell, cross-linked polyethylene gasket.

Square-framed doors are available with tab-in or press-on style frames, both designed to ensure quick and easy installation. Our square-framed doors include: Hinge & Cam Square-Framed Door, Cam Latch Square-Framed Door, and High-Pressure Cammed Square Framed Door.

All tab-in frames are manufactured with fastened corners for increased strength and feature an improved dovetail design for metal duct, 1” duct board, and 1 ½” duct board. Press-on frames include a durable double-sided adhesive gasket, allowing for easier and safer installation on metal ductwork.

For high-pressure applications, our all-cam tab-in version is also available in a high-pressure square frame door, with a pressure rating of -10”/+10” w.g.

MORE FEATURED PRODUCTS

Moisture Drain

Our Moisture Drain provides a reliable, cost‑effective solution for managing unwanted moisture in ductwork and drain pans, helping to prevent leaks, corrosion, and potential system damage.

Designed for fast and easy installation, the drain forms a leak‑proof connection that efficiently directs collected moisture away from the duct system. Its unique funnel design draws the surrounding duct area inward, ensuring consistent and complete drainage even in the most challenging moisture conditions.

Circular Clean-Out Sandwich Access Doors

Our Circular Clean-Out Sandwich access doors are designed for professional duct cleaners who need quick, clean, repeatable access to ductwork and air handling units without the time-consuming steps and messy finishes of traditional clean-out methods. Offered in 8″, 10″, and 12″, this door is precision-built to be a perfect fit for securing the metal vacuum-hose adapter, helping crews set up faster and work more efficiently.

Installation is simplified without the need for metal plates, drilling screws, tape, or sealant, resulting in less labor, fewer reworks, and no duct distortion from re-drilling. Simply cut the opening, insert the door at an angle, and hand-tighten the wingnuts for a neat, professional appearance and easy access every time. It’s one of the smartest and most cost-effective doors in our lineup.

INDUSTRY NEWS & MORE

Hollow Block Kits for Hurricane Air Brace Now Available

Hollow block installation kits are now available for Hurricane Air Brace installation and mounting on hollow concrete block. Ordering information can be found on the product page or spec sheet.

Using Fire Wrap Systems With Ductmate Access Doors: Ordering & Modification Guide

While Ductmate doesn’t sell fire wrap, it is commonly used with some of our access doors. This guide breaks down what Ductmate access doors pair with common fire wrap systems, including what to order, what to specify up front, and the simple door modifications that will help you to install wrapped ductwork with less hassle.

Want to learn more? Click here to read the full article.

Clean HVAC Preventative Measures & Ductmate Solutions You Can Clearly See

Ductmate’s solutions show how our smart, preventative solutions help facilities maintain healthier indoor air quality with confidence. Originally designed for hospitals and healthcare, our Observation Access Doors enable clear, safe visual inspection of filtration systems and UV technology without disrupting airflow or system integrity. With durable construction, high‑impact safety glass, and a leak‑free, pressure‑rated design, these solutions make it easy to demonstrate a visible commitment to clean, well‑maintained HVAC systems.

Click here to read the full article.

Customize What Matters: Ductmate Access Door Options Built Around Your Requirements

When a job requires solutions beyond standard sizes and configurations, Ductmate offers flexible ordering options to help you get the right access door for the application. From custom dimensions to insulation, bolt modifications, and specialty alloys, these choices make it easier to meet your job requirements.

Ready to explore your options? Click here to read the full article.

UPCOMING EVENTS

NADCA Annual Meeting & Expo

March 23-25, 2026 | Colorado Springs, CO

NADCA’s 37th Annual Meeting & Expo will bring together industry professionals involved in the inspection, cleaning, and restoration of HVAC systems.

Attending the show? Be sure to stop by to see us at booth #413!

IKECA Annual Meeting & Expo

April 15-17, 2026 | Indianapolis, IN

IKECA’s Annual Membership Meeting & Expo brings together industry professionals involved in the commercial kitchen cleaning industry who are committed to fire prevention and life safety.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Sign up for Ductmate’s e-Newsletter

Don’t miss our monthly e-newsletter!  Click here and sign up to receive exclusive Ductmate news and announcements, product information, promotions, industry news, and more, right in your inbox.

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Customize What Matters: Ductmate Access Door Options Built Around Your Requirements

Posted on by Ductmate Industries

When a job requires solutions beyond standard sizes and configurations, Ductmate offers flexible ordering options to help you get the right access door for the application. From custom dimensions to insulation, bolt modifications, and specialty alloys, these choices make it easier to meet your job requirements.

Custom Door Sizes

Need a door size that fits the job, not the other way around?

Ductmate can custom-make virtually any size ULtimate™ Door, from 6” x 6” to 24” x 24”. Additionally, all of our square-framed doors (Hinge & Cam, Cam Latch, and High-Pressure Cammed) are available in custom sizes from 6” x 6” to 36” x 36”, in both square and rectangular-shaped options.

Insulated or Uninsulated Options

Different applications call for different performance needs, and insulation is often a key consideration.

A variety of our Sandwich®-style doors (Rectangular, Round, and Circular Clean-Out) are available for order with or without insulation to suit a wide range of applications.

Bolt Length Modifications

For installations that require additional clearance or compatibility, including fire wrap installation, bolt length modifications can make all the difference.

Both the ULtimate Door and ULtimate Door II can be purchased with insulation kits that are specifically designed to allow our doors to be used with fire wrap. The kit includes the door, extension bolts, and an outer plate. The extension bolts, which are roughly 6”, allow the fire wrap to slide over the bolts and accept the outer plate.

We do not offer insulation kits for the ULtimate Door Round due to the different diameter options. However, extension bolts and outer plates are still available separately.

Our F1 High-Temperature and F2 Grease Duct doors are also commonly used with fire wrap. These doors can be ordered with modified bolts, either 4” or 6”, to help accept the fire wrap.

Click here to learn more about using Ductmate access doors with fire wrap.

Specialty Alloys

When standard materials aren’t the right fit, specialty alloys may be the best option.

All of our access doors are available in specialty alloys. Check their product pages and/or spec sheets for more ordering information and a list of available alloys.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

blog posts:

Using Fire Wrap Systems With Ductmate Access Doors: Ordering & Modification Guide

Posted on by Ductmate Industries

What Are Fire Wraps & What Are They Used For?

A fire wrap is a fire-resistant, non-combustible, flexible, high-temperature insulation blanket installed around metal ductwork as part of a fire-rated enclosure system. It creates a passive fire-resistive barrier (typically 1-2 hours) on ductwork to prevent the spread of fire, smoke, heat, and toxic gases throughout a building.

Instead of “actively” detecting or extinguishing flames (like sprinklers or alarms), passive fire protection focuses on containing fire and heat long enough to support safe evacuation and maintain the system’s integrity.

Fire wrap is often required for commercial kitchen grease ducts (where grease can ignite and burn intensely), exhaust ducts, and dryer vents. It is critical to follow each manufacturer’s installation instructions as fire wraps are listed as a complete, specific assembly; changing details during installation, like layer count, fastening, overlaps, or penetration treatments, can compromise the system’s rated performance.

How Are Ductmate Access Doors Used With Fire Wraps?

Ductmate does not make or sell fire wrap; however, it is commonly used with several of our access doors, including our ULtimate™ doors and the F1 and F2 doors, which are referenced in many International Code Council (ICC) Evaluation Service Reports for major fire wrap manufacturers. These doors are designed and engineered to meet or exceed all applicable standards and to ensure ease of use with fire wrap.

ULtimate Doors

Both the ULtimate Door and ULtimate Door II can be purchased with insulation kits specifically designed to allow our doors to be used with fire wrap or can be purchased separately. The kit includes the ULtimate door, extension bolts, and an outer plate. The extension bolts, which are roughly 6”, allow the fire wrap to slide over the bolts and connect the access door to the outer plate. The outer plate encapsulates the insulation over the access door, protecting the integrity of the access point and identifying the access point for duct cleaners and fire departments.

Ductmate does not offer insulation kits for the ULtimate Door Round due to the different diameter options. However, extension bolts and outer plates are still available separately.

Custom outer plates are made using a formula that helps us determine the exact diameter needed for the outer plate:

Insulation thickness x number of layers x 2 + duct diameter. (Ex: Diameter of the duct is 14” using 3 layers of 1.5” insulation. (1.5”x3) x 2+14” = 23” outer plate.)

If you need assistance calculating the diameter of the outer plate, please contact Ductmate Customer Service, and they will be happy to assist you.

F1 & F2 Doors

Ductmate’s F1 High-Temperature and F2 Grease Duct doors are also commonly used with fire wrap. These doors can be ordered with modified bolts, either 4” or 6”, to help accept the fire wrap. We do not provide outer plates for these doors; however, they are commonly made in the field with extra sheet metal.

If you are installing our doors with a fire wrap system, please be sure to specify when placing your order to ensure that you receive the correct doors that will allow for easy installation. For more information, consult Ductmate Customer Service.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

blog posts:

January 2026 Newsletter Recap: Solutions for Mega Project Excellence

Posted on by Ductmate Industries

Built to Last & Built to Lead: Solutions for Mega Project Excellence

Built to last and built to lead, Ductmate offers a variety of solutions for mega project excellence.

By choosing Ductmate, you’re not just meeting industry standards—you’re choosing maximum efficiency and reliability in the world’s most complex mega projects.

RELATED PRODUCTS

DM ‘35’ & ‘45’ Self-Sealing Rectangular Flange Connector Systems

The innovative DM ‘35’ and ‘45’ systems are designed for applications where strong, leak-free connections are critical.  Ideal for data centers, semiconductor plants, battery plants, wastewater treatment plants, chemical plants, oil rigs, stadiums and arenas, underground transit stations, and more.

Forget about struggling with traditional, labor-intensive methods for connecting heavy-duty ductwork. Backed by rigorous testing and our industry-leading guarantee, this superior solution not only saves you time, money, and effort but also ensures exceptional performance, making your operations more efficient and cost-effective.

The system features precision-engineered components for seamless assembly:

  • Roll-formed Flanges with Integral Mastic: Ensure a tight seal against the duct wall for a superior, leak-free connection. Integrated mastic eliminates the need for separate sealant applications, saving time and labor during assembly.
  • Corners: Reinforce the ductwork structure to hold everything together securely and provide a dedicated sealing surface for the gasket, further optimizing the system’s airtight integrity.
  • Gasket: Forms a vital barrier between the flanges to prevent air leaks and ensures optimal airflow within the duct system.
  • Cleats (Versa-Cleat or Bolt-On): Guarantee consistent compression and secure, efficient assembly, even on large duct spans.

With DM ‘35’ equal in strength to a SMACNA J-class and DM ‘45’ equal to a SMACNA K-class transverse joints, these systems provide the strength you need to connect the biggest duct imaginable without the labor-intensive fabrication processes of drilling bolt holes, welding frames, or applying rust-proof coatings. It’s no wonder that the DM ’35’ and ’45’ systems have become the clear choice over the labor-intensive companion angle.

Available in seven alloys (galvanized, galvanneal, aluminum (except cleat), aluminized, 304 stainless, 316 stainless, PVC-coated, and black iron), and with a variety of snap-on or bolt-on cleat, corner options, and more, the DM ‘35’ and ‘45’ systems are the ideal solution for your industrial and mega project problems.

PolyArmor Duct Liner Insulation

Ductmate’s PolyArmor™ polyester insulation is engineered to address the shortcomings of traditional insulation materials, offering a superior alternative with several compelling advantages:

  • Fiber-Free and Safe: PolyArmor eliminates fiber shedding and does not break down in the airstream, creating a cleaner and healthier indoor environment.   Its polyester material is soft and hypoallergenic, eliminating irritation during handling that you would typically experience with fiberglass insulation.
  • Superior Moisture Resistance: PolyArmor’s polyester construction provides exceptional resistance to moisture and condensation, minimizing the risk of mold growth.
  • Easy Installation: Designed for ease of installation, PolyArmor reduces labor costs and installation time, with its flexible nature allowing it to conform to any duct shape.
  • Enhanced Thermal Performance: PolyArmor provides industry-leading R-values/thermal resistance, contributing to increased energy efficiency and reduced system load.
  • Durability and Longevity: PolyArmor is engineered from strong and safe polyester that is webbed into a thermal blanket, which is then bonded with an extremely durable FSK-facing that reduces damage during fabrication, operation, and cleaning.
  • Environmental Benefits: Made with environmental sustainability in mind, PolyArmor is manufactured from 25% recycled content.

Access Doors

Sandwich Access Doors

Sandwich® Doors are solid, leak-proof access doors that are simple to install, providing easy access to ductwork.  Its unique sandwich-style design with knobs that are easily turned by hand allows for effortless opening and closing with no tools required, and no measuring needed, thanks to a provided self-adhesive template.

Sandwich Doors are available in both insulated and uninsulated options, as well as a wide variety of alloys. Additionally, single-pane and double-pane observation-style sandwich access doors are available to allow for viewing inside duct without door removal.

ULtimate Access Doors

The ULtimate Door™ provides easy access to high-temperature air ducts and grease duct systems, and is designed for applications requiring a UL 1978 listing.  Unlike shop-fabricated and inferior, light-gauge grease duct door substitutes, Ductmate’s high-performance ULtimate Doors are designed to meet the challenges. They are the most extensively engineered, tested, and ruggedly constructed doors available in the industry.

ULtimate Doors are grease and liquid-tight with minimal penetration into the duct, and are UL 1978-listed and meet NFPA 96 standards. Its sandwich-style design allows them to be completely removed or installed in minutes.  No frames to install, no holes to drill, and no clips needed, dramatically reducing field installation time and labor.  The ULtimate Door and ULtimate Door Round, and the weld-on style ULtimate Door II are available for when life safety and building performance are your top priority.

ULtimate Doors are available in custom sizes ranging from 6×6” to 24×24” in stainless steel 304 or black iron and with optional design features for virtually any configuration.  Consult Customer Service for more information.

Hangers

Pre-Punched Trapeze Duct Hanger

The Pre-Punched Trapeze Duct Hanger is a specialized duct support channel designed to support rectangular and oval ductwork. Made from 18-gauge galvanized steel and measuring 2″ high x 1.5″ wide, this lightweight and easy-to-cut product arrives at the job site in 20-foot lengths, pre-punched with oval holes at 2-inch intervals for immediate use.

Its versatile design eliminates the need for hard-to-cut and punch-angle iron, and it can be standardized to replace multiple hanger types, thereby potentially reducing inventory costs. The hanger’s neat, professional appearance is complemented by the option to insert heavy neoprene gaskets for sound isolation, and it can be secured to structural members up to 1.5 inches thick using its beam clamp.

Isolation Hanger Type SI

The Isolation Hanger Type SI is a sturdy, vibration-isolating steel hanging bracket featuring a rubber isolation pad, designed for use with threaded rods to suspend ductwork and other equipment, isolating vibration at its source.

Capable of supporting up to 1100 lbs (499 kg), the sturdy tension brackets have a much greater load-bearing capacity than the corresponding threaded rods.  Its styrene-butadiene rubber padding isolates vibration at its source, preventing distracting noise transmission and extending the lifespan of HVAC equipment by reducing wear and tear. The outside dimensions match standard wrench sizes, so no special tools are required, making installation easy. The open space of the bracket corresponds to the width of the nut, preventing it from turning.

Round Duct Hanger

Install your round ductwork quickly and effortlessly with our Round Duct Hanger. This prefabricated hanger features a ¼” x 20 carriage bolt with a zinc-plated wing nut and lock washer for secure, tool-free installation. Available in a range of sizes from 3” to 10” in 1” increments and 12” to 34” in 2” increments to perfectly fit your ductwork. Constructed from durable 20-gauge galvanized metal for long-lasting performance.

Round Duct Strap Bracket

Our versatile Round Duct Strap Bracket supports ductwork up to a generous 50” diameter. Designed to accommodate 1” wide strapping in gauges 18-22, it offers flexible installation options. Easily attach your preferred hanging system with compatibility for Cable Shark Hanger Adapters, 3/8” and 5/16” rods, or eyebolts. This bracket is a crucial component for secure and efficient ductwork suspension when used in conjunction with strapping and your chosen hanging method.

Hanger Strap

Our versatile Hanger Strap makes it easy to tackle hanging ductwork. Available in convenient boxes, bundles, or coils and in galvanized and stainless-steel options, this essential component is perfect for even the most challenging installations.

Vinyl Duct Strapping

Quickly and easily secure your flexible or lightweight ductwork with our Vinyl Duct Strapping. This strong, all-purpose fabric is perfect for small-scale installations, and its durable construction ensures reliable support for hanging your ductwork.

UPCOMING EVENTS

2026 Ductmate Distributor Training Classes

Registration for Ductmate’s 2026 Distributor Training classes is now open! Distributor Training classes are offered as a three-day experience that offers a blend of classroom learning and hands-on training at our corporate headquarters and main manufacturing facilities in Pennsylvania.  Whether you’re new to the HVAC industry or a seasoned pro looking for a refresher on our products, this class is the perfect opportunity to learn all there is to know about our products, gain hands-on experience, and see our facilities.

Classes will be hosted throughout the year on April 27-29, May 18-20, June 15-17, and September 14-16. Spots are limited and are reserved on a first-come, first-served basis.

Interested in attending? Click here to learn more.

2026 AHR Expo

February 2-4, 2026 | Las Vegas, NV

Don’t miss the biggest HVAC event of the year! Join us at booth #C4707 in the Central Hall at the 2026 AHR Expo.

Attending the show? Click here to add us to your show planner.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Sign up for Ductmate’s e-Newsletter

Don’t miss our monthly e-newsletter!  Click here and sign up to receive exclusive Ductmate news and announcements, product information, promotions, industry news, and more, right in your inbox.

Connect With Us on Social Media

Follow Ductmate on our Facebook, Instagram, LinkedIn, and YouTube social media accounts to stay up-to-date with the latest news!

ULtimate Door Lineup: Performance, Safety, and Options That Matter

Posted on by Ductmate Industries

Design and engineering choices when choosing a grease duct access door can mean the difference between life and death for building occupants and first responders.  When life safety and building performance are your number one priority, Ductmate’s ULtimate grease duct access doors are superior to the competition.

What are the ULtimate Doors?

Ductmate’s ULtimate access doors provide easy access to high-temperature air ducts and grease duct systems and were designed for applications requiring UL 1978 listing.

Ductmate offers the ULtimate Door (sandwich-style), ULtimate Door II (weld-on), and the ULtimate Door Round (sandwich-style for round duct) that provide the following special characteristics:

  • UL 1978 listed
  • Superior life safety protection
  • Minimal penetration into the duct
  • Grease and liquid tight
  • Meets NFPA96 standards
  • Dramatically reduces installation time
  • 11 ga. 304SS or Black Iron
  • ICC tested with leading wraps
  • No special tools required
  • Quick and easy access

Unlike shop-fabricated and inferior, light gauge grease duct door substitutes, the high-performance line of ULtimate Grease Duct Access Doors from Ductmate are designed to meet the challenges. They are the most extensively engineered, tested, and ruggedly constructed doors available in the industry.

Why make your job more difficult?

The ULtimate Doors are designed to save you time and money without compromising safety.  The sandwich style of the ULtimate Door and ULtimate Door Round allows them to be completely removed or installed in minutes.  No frames to install, no holes to drill, and no clips needed, dramatically reducing field installation time and labor.

When working in the field, time is money, so why make your job more difficult than it has to be? Use the access doors that keep you safe and don’t waste your time.

Can I customize my order of ULtimate Doors?

Ductmate can custom make virtually any size ULtimate Door, starting at 6” x 6” all the way up to 24” x 24”. Consult Ductmate customer service for more information.

Additionally, the ULtimate line of access doors can be ordered in stainless steel or black iron and several optional design features for virtually any configuration.

As always, we’re happy to work with you to deliver the products you need.

Where can I buy the ULtimate Doors?

Ready to buy the ULtimate Doors? Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Clean HVAC Preventative Measures & Ductmate Solutions You Can Clearly See

Posted on by Ductmate Industries

The Fight for Indoor Air Quality Is Critical, and Ductmate Products Offer a Clear Advantage

Originally designed for use in hospitals, Ductmate’s Observation doors allow you to be vigilant over your air filtration system. Now more than ever, we must ensure our work environments are protected against harmful, air-borne substances. The Sandwich® Observation Doors are constructed from precision-stamped steel and high-impact safety glass to be used in all pressure classes, including high-pressure duct systems. The patented Ductmate Sandwich® Observation Access Door design eliminates bending metal tabs, leaking frames, and worrying about scratched or worn glass; therefore, leaving you with the peace of mind that all preventative measures have been considered.

Typical In-Duct UV Light System With Ductmate Sandwich Observation Doors

“As facilities are beginning to reopen, many companies are looking to add UV technology to help address concerns over air quality, reassuring building occupants they are doing the most they can to ensure safety in the workplace.”

– Aaron Engel, VP For Business Development, Fresh-Air UV

Below is a breakdown on all the advanced feature that Ductmate Sandwich Observation Doors offer over a basic viewport door.

Please visit the specific product page for more detailed information on each door.

16×12 Observation Door

AHU Observation Door

Single Pane Observation Door

Promotional pricing for all our Observation Doors is currently available please contact us today for more information or click here to find a Ductmate Distributor near you.

Click the button below If you would like a digital version of this information.

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Introducing the 16×12 Double-Paned Observation Access Door

Posted on by Ductmate Industries

The 16×12 double-paned observation access door is now available!

This door was designed specifically for hospitals, clean rooms, pharmaceuticals, and laboratories to eliminate the danger of dust contaminating ductwork during inspections of in-duct smoke detectors, UVC emitters, fire and smoke dampers, and humidifiers.

Read more about this newest addition to the Sandwich® Access Door line here.