type b gas vent pipe for venting of gas appliances. double wall construction with aluminum inner, and galvanized outer wall. must be used only with duravent b-vent pipe and fittings to comply.
- Type B gas vent
- Double wall construction for venting gas appliances
- Galvanized outer wall, aluminum inner wall
- 1" clearance to combustables
- Made in USA, 15 year warranty
