DuraVent PolyPro Flex Coupler Adapter: joins two flex lengths for a longer chimney run
The DuraVent PolyPro Flex Coupler Adapter is a fitting that connects two lengths of flexible vent liner. It makes a tight connection when the chimney is taller than one roll can reach, or when you want to use two pieces of liner. Two flex gaskets, the seals for the connections, come with it. Choose the size that matches your flex: 2, 3, 4, or 5 inch. PolyPro is DuraVent’s polypropylene vent pipe for high efficiency condensing gas boilers, furnaces, and water heaters.
PolyPro Flex is a flexible polypropylene liner with two walls. It carries exhaust up through an existing masonry chimney or chase, an enclosed passage that acts only as a sleeve around the liner. The chimney cannot also vent another appliance. The flex is trimmed to the needed length on site with a saw or knife, making the cut in a groove. Need a replacement seal? See the DuraVent PolyPro Flex Viton Replacement Gasket. The DuraVent PolyPro Flex Coupler Adapter ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 2PPS-FAF | 3PPS-FAF | 4PPS-FAF | 5PPS-FAF
Applications
PolyPro is a polypropylene vent pipe for use with ANSI Category II and IV gas-burning appliances, including highefficiency water heaters, condensing boilers and warm air furnaces. Poly Pro is listed by Intertek to the ULC S636 standard in Canada as a Class IIA, IIB and IIC vent system suitable for exhaust temperatures up to 230°F / 110°C, and a maximum positive pressure of 15 in-w.c.
Materials and Construction
Rigid pipe constructed of 2.2mm (minimum) thick polypropylene. Flex is double-wall polypropylene. EPDM or Viton gaskets.
Clearances
General: 0″ clearance to combustibles for exhaust temperatures up to 194°F / 90°C.
Vertical Installations: 0″ clearance for vertical installations up to exhaust temperatures of 230°F / 110°C.
Horizontal Installations: ¼” / 6mm clearance to combustibles for horizontal installations at exhaust temperatures up to 230°F / 110°C.
Concentric vent system components, including Horizontal and Vertical Terminations: 0″ clearance to combustibles for exhaust temperatures up to 230°F / 110°C.
Diameters
2” (60mm) | 3” (80mm) | 4” (100mm) | 5” (130mm)
Listings
Listed with the appliance in the USA, check with appliance manufacturer. Intertek / ETL listed to ULC-S636 Listed as a Class IIA, IIB, and IIC vent system.
Previously the CSA certification trademark was shown in error in conjunction with the PolyPro product – references have been removed.
Videos
Newly Designed PolyPro® Locking Clamps Video
PolyPro® Double-Wall Video
Why Polypropylene? DuraVent’s PolyPro® Venting System Video