DuraVent 2"-3" PolyPro B-Vent Retrofit Adapters
The DuraVent 2"-3" PolyPro B-Vent Retrofit Adapters are engineered venting transition accessories designed to help convert existing B-vent systems to DuraVent PolyPro vent systems for modern high-efficiency condensing gas appliances. These retrofit adapters provide a reliable connection solution for condensing boilers, furnaces, tankless water heaters, and HVAC venting applications, making upgrades easier while supporting safe and efficient vent performance.
Built with advanced PolyPro polypropylene venting technology, DuraVent retrofit adapters offer a durable alternative to traditional PVC and CPVC venting methods. PolyPro is specifically designed for condensing appliances with a higher operating temperature limit of 230°F (110°C) and features an integrated condensation management system. These PolyPro B-vent adapters help provide corrosion-resistant, professional, and code-compliant vent installations for residential and commercial heating systems.
Features
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PolyPro B-Vent Retrofit Adapter Kit: The DuraVent 2"-3" PolyPro B-Vent Retrofit Adapters are designed to retrofit standard B-vent chimney sizes for use as a protective chase with PolyPro flex vent systems.
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Converts Existing B-Vent Chimney Applications: Provides a practical solution for upgrading existing B-vent chimney systems to support modern high-efficiency condensing gas appliance venting.
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Complete Retrofit Components Included: Kit includes a top cap adapter and bottom support cup for a secure and professional PolyPro flex installation.
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3-Inch Model Includes C-Support Plate: The 3" PolyPro B-Vent Retrofit Adapter includes the required C-support plate for proper system support and installation.
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Compatible with PolyPro Flex Vent Systems: Engineered for use with DuraVent PolyPro polypropylene vent components serving condensing boilers, furnaces, and water heater applications.
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Professional HVAC Venting Upgrade Solution: Helps create a durable, safe, and code-compliant venting pathway for residential and commercial retrofit projects.
Specifications
| Model |
Size |
| 2PPS-BV3 |
2" in a 3" chase |
| 2PPS-BV4 |
2" in a 4" chase |
| 2PPS-BV5 |
2" in a 5" chase |
| 2PPS-BV6 |
2" in a 6" chase |
| 3PPS-BV5 |
3" in a 5" chase |
| 3PPS-BV6 |
3" in a 6" chase |
| 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 |
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