X 3 in. Galvanized Steel Tee with Clean-Out Cap PelletVent is a complete venting system from DuraVent for stoves and inserts that use oil fuel or multi-fuels (including wood pellets corn cherry pits switch grass coffee husks walnut shells soybeans wheat sunflower hulls rapeseed and sugar beets). Its double-wall air-insulated design offers superior performance and reliability for long-term use.