Universal Mount Double Deflection Spiral Duct Supply Register with Scoop, 12 x 4 in, Aluminum

TRUaire™'s SU series universal spiral duct supply grilles are designed to be installed directly on round or spiral duct, eliminating the need for costly register taps and offer a clean, low profile appearance. These grilles come in either vertical single deflection or front vertical double deflection. They have 3/4 in spacing and individually adjustable blades and a high density closed cell foam gasket on each end which allow the grille to form seamlessly to multiple duct diameters. Optional air scoop extracts air from the duct, allowing for air balancing and uniform air flow.