RoofiVent iFlex Pipe Accessories Back Flow Valve

Please note: The i-Flex Connection Pipe is sold separately. 

If you purchase both they will be installed and connected together for you, and then shipped, instead of separate boxes.

RoofiVent iFlex Pipe Accessories Back Flow Valve

The backflow valve blocks the backflow of air from the outside through the vertical vent. It’s fully compatible to install in the iFLEX 5" or 6" pipe. 0.8" high and made of high-quality, durable polypropylene.

For other options, see "Related Products" below.