Dura-Vent Pellet Vent Fireplace 4 Inch Reduction Collar
Dura-Vent Pellet Vent Fireplace 4 Inch Reduction Collar reduces the center hole diameter in the Ceiling Support/Wall Thimble Cover to fit a 3" or 4" pipe. It can be used as trim collar when penetrating a masonry chimney with PelletVent Pro. It is provides 1" clearance to combustibles. Dura-Vent reduction collar is a venting system designed for stoves and inserts that use wood pellets and oil fuel. Dura-Vent reduction collar is also built to vent corn and other bio fuel products. It has no required gaskets or sealants to achieve leak-resistant connections.