3in Pellet vent is a venting system for stoves and inserts that use multi fuels (including wood pellets, corn, cherry pits, switch grass, coffee husks, walnut shells, soybeans, wheat, sunflower hulls, rapeseed and sugar beets) or oil fuel. The DuraVent pellet vent stove pipe kit provides exceptional performance and has an air insulated, double-wall design with factory sealed seams and stainless steel construction for long-lasting durability and reliability. Adjustable with a twist lock design for convenient fastener free connections, this kit is used to horizontally vent a stove through a wall and includes everything you need to complete a simple vent in 1 convenient box.