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- PolyPro Flex through B Vent as a Chase: Retrofit venting for new, high-efficiency appliances. When replacing a mid-efficiency appliance with a new condensing 90+ appliance, you can use the existing B vent (any brand) as a chase for the new appliance with PolyPro. The perfect solution for utilizing the B Vent already in place, use the convenient pull cone to insert double-wall PolyPro Flex through the B Vent pipe and terminate in either a two pipe or single pipe system. At the other end is the unique B Vent/Polypro Support Cap, allowing for the connection of flex to rigid PolyPro lengths and elbows to finish the installation.
DuraVent® PolyPro® Flex Vent Pipe, Flexible, 3 in Dia, 25 ft Length, Polypropylene
- Use to line masonry chimneys that vent condensing appliances
- Double wall construction
- Can be cut to precise length in the field
- 5 in Dia flex comes in rolls of 98 ft only
- Flex is double-wall polypropylene
- Diameter3 inLength25 ftMaterialPolypropyleneManufacturerM&G DuraVentManufacturer #3PPS-FLEX25SeriesPolyProTypeFlexible