The DuraStack® Pro Series, Models DCL, DAS1, DIS1, DIS2, DIS4, DIS3Z venting systems, are designed to offer the ultimate in installation convenience and versatility for a variety of applications. Certified for commercial chimney and diesel exhaust applications, they are constructed of thick-gauge ma

The 10”-16” diameters are listed to UL 103 Type HT. That means our 10”-16” chimney system is perfectly suited for hightemperature appliances, making it ideal for factory-built fireplaces, large masonry fireplaces, and boilers.

The DuraStack® Models DIS and DAS venting systems are designed to offer the ultimate in installation convenience and versatility for a variety of applications. Certified for commercial chimney as a modular double-wall positive pressure chimney system. Factory built for boiler breeching, engine exhau

5″-8″ DuraTech is a double-wall, all-fuel chimney system for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas, and zero-clearance fireplaces that are factory-built.

DuraChimney II is a double-wall, air-cooled chimney system for use with masonry fireplaces which burn wood, oil, coal, or gas.

DuraPlus 2 (DP2) is a double-wall, all-fuel chimney system for use with wood, gas, oil, or coal burning appliances.

DuraPlus Chimney is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas.

Duravents' Factory-Built, UL-Listed Prefab Grease Duct is designed for efficiency, safety, cost savings, and compliance. It provides a plug-and-play alternative to traditional welded steel duct systems.

A three-way wafer body ball valve with a bar stock body, suitable for flow diverting or mixing applications, available in sizes from DN 15 to DN 150 and pressure ratings up to ANSI 300.

Compact inductors available in vertical or horizontal configurations, suitable for electronics ballast, LED lighting, and switch-mode power supplies.

60-90 minute fire rated doors with temperature-rise tested to NFPA 252/UL 10B/UL 10C up to 10 ft. tall. Available with full-vision glazing, standard and narrow profiles, multiple hardware options and finishes including custom aluminum clad or stainless steel clad. See below for more information!

20-45 minute fire rated doors tested to NFPA 252/UL 10B/UL 10C up to 10 ft. tall. Available with full-vision glazing, standard and narrow profiles, multiple hardware options and finishes including custom aluminum clad and stainless steel clad. See below for more information!

2-piece Body Full Port Chrome-Plated Ball Virgin PTFE Seats Adjustable Packing Nut Blow-Out Proof Stem MSS-SP-110 500 psig (1-¼”, 2″) for UL use CSA B125.14 (¼” – 2”) CSA ½, 5 & 125 psi (½” – 2″) CSA ½ & 5 psi (2½” & 3″) 29 in-Hg rating for Vacuum Service UL approved (½” – 2”) FM approved (½” – 2″)

EFS Multi-Blade fire damper is rated as a 3 hours fire damper for use in dynamic systems, per SI 1001 part 3 (UL 555). As a life safety fire damper, it has a failsafe design which enables the damper to automatically close upon the detection of heat and/or loss of power. The electric heat respons

EFS Multi-Blade fire damper is rated as a 3 hours fire damper for use in static systems, per SI 1001 part 3 (UL 555). As a life safety fire damper, it has a failsafe design which enables the damper to automatically close upon the detection of heat and/or loss of power. The electric heat responsi

Reduces a higher inlet pressure to lower outlet pressure. Provides a consistent outlet pressure over a wide flow range. Pilot operated main valve is not subject to pressure fall-off. Outlet pressure is adjustable with a single screw. Can be maintained without removal from the pipeline. Flanged Ends

Y Strainer meets or exceeds the requirements of UL 321 Standard NPT Blow-Off Outlet on Body and Cover. ASTM A276, Type 304 Stainless Steel Screen. Excellent flow characteristics. Low pressure loss at high flow rates. Grooved Ends to AWWA C606 Standard. Fusion Bonded Epoxy Coated Interior and Exterio

"TRUNNION MOUNTED" ball valves are suitable in case of high performances under critical working conditions.

"TRUNNION MOUNTED" ball valves are suitable in case of high performances under critical working conditions.

Modern type, UL/ULC listed, FM approved, modern type, lateral elbow inlet, nuts/bolts & stem rod in AISI 316 (A4)

Inerex® by Rotarex Firetec is a complete UL, FM & VdS Approved Inert Gas Fire Suppression System that helps you save time and improves productivity

Floating ball valves, construction to ASME B16.34 – ASME VIII Div.II, 2 piece bolted body, split body,side entry, flanged RF/RTJ to ANSI B16.5, face to face to ANSIB16.10, full/reduced bore, ISO (5211) top work standardized for actuation, metal seated (ball & seats with Tungsten or Chromium Carbides