DuraVent 25' PolyPro Flex Length
The DuraVent 25' PolyPro Flex Length is a premium flexible vent pipe solution designed for high-efficiency condensing gas appliance venting systems. Engineered for use in PolyPro chimney relining and retrofit applications, this flexible vent length provides installation versatility for condensing boilers, furnaces, tankless water heaters, and HVAC exhaust systems while allowing smooth routing through challenging vent pathways.
As part of the trusted DuraVent PolyPro polypropylene venting system, this 25-foot flex length delivers durability, easy handling, and reliable performance compared to traditional PVC venting options. PolyPro is engineered specifically for condensing appliances with a higher operating temperature limit of 230°F (110°C) compared to PVC and CPVC. Featuring an advanced condensation management system, DuraVent PolyPro provides corrosion-resistant, efficient, and code-compliant venting solutions for residential and commercial installations.
Features
-
PolyPro Flex Length for Chimney Relining: The DuraVent 25' PolyPro Flex Length is designed to line masonry chimneys for condensing appliance venting, providing a reliable pathway for high-efficiency heating systems.
-
Available Multiple Length Options: Offered in 25-foot, 35-foot, and 50-foot lengths to accommodate various chimney retrofit and PolyPro flex vent installation requirements.
-
Double-Wall PolyPro Flex Construction: Features durable double-wall construction for enhanced strength, reliable performance, and improved vent system integrity.
-
Field-Cuttable Flexible Vent Pipe: Can be cut to the precise required length in the field, allowing flexible installation and reducing material waste during chimney lining projects.
-
Designed for Condensing Appliance Applications: Ideal for use with condensing boilers, furnaces, tankless water heaters, and HVAC vent systems requiring efficient polypropylene venting.
-
Compatible with DuraVent PolyPro Systems: Engineered for PolyPro polypropylene vent components to provide safe, corrosion-resistant, and code-compliant venting solutions.
-
Special 5" Diameter Flex Option: The 5-inch diameter PolyPro flex vent is supplied in 98-foot rolls only for larger installation requirements.
Specifications
| Model |
Size |
| 2PPS-FLEX25 |
2" I.D x 25' Length |
| 3PPS-FLEX25 |
3" I.D x 25' Length |
| 4PPS-FLEX25 |
4" I.D x 25' Length |
| Clearance |
0” clearance to combustibles / vertical installations |
| Listings |
ULC S636 is Listed as a Class IIA, IIB, and IIC vent system. |
| Warranty |
10-years Limited warranty |
Downloads
