Use for a 90° offset. Attaches directly to appliance as an adapter. Removable twist-lock Clean-Out Tee Cap. PelletVent Pro is a venting system designed for stoves and inserts that use wood pellets and oil fuel. It is also built to vent corn and other biofuel products (Rated for continuous use flue temperatures up to 570° F). Diameter: 3". Clearances: 1" clearance to combustibles in the USA for appliances using wood pellets or oil. 1" clearance to combustibles in Canada for oil-burning (type L vent) appliances. 3" clearance to combustibles in Canada for wood pellet-burning appliances. Listings: c-UL Listed to UL641 (MH8381 and MH14420). ULC Listed to ULC S609, ULC/ORD C441 (CMHS609, and CMH1440). Wall Construction: Double Wall. Material: Galvanized Painted Black.