type b gas vent fittings 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, aluminum inner wall, swivels 360 deg at base
- 1" clearance to combustables
- Made in USA 15 year warranty UL 441
