Unbranded 4 in. D Starter Collar

The 4 in. D Starter Collar is made from galvanized steel for strength and durability. The collar connects easily to ducts with the fluted end and has a flared rim to help provide an air tight seal.Made from galvanized steelConnects easily to ducts with the fluted endFlared rim helps provide an air tight sealMultiple tabs help offer a secure fit during installation