1pack Greenseam Grr8p4pga26 Reducer 8 in x 4 in Duct Dia

Greenseam Reducer,8″ x 4″ Duct Size GRR8P4PGA26

For use with GreenSeam+ snap pipe (sold separately), a self-sealing duct for commercial and residential applications. Pipe is engineered with a LEED qualifying zero-VOC gasket; eliminates additional sealing along the longitudinal seams and transverse joint. When fitting is used with GreenSeam pipe, the design can reduce energy costs and increase overall system efficiency. W.G, Standards SMACNA / ASTM, Pre-sealed, For Use With Greenseam Duct system”