DuraVent DuraVent 6" Inner Diameter - Type B Oval Gas Vent - Double Wall - Adjustable Roof Flashing for 0/12 - 6/12 Pitches

Features: Used to weatherproof vent pipe through the roof Storm collar is required for the installation of this productUsed for both natural gas and liquid propaneThis product is UL Listed 441, ULC S605Specifications:Height: 7-1/8"Length: 25-1/2"Width: 17-1/2" Material: GalvalumePipe Shape: OvalPipe Class: Type B