600TFG Series Lattice Return Air Filter Grille for T-Bar Step Down Ceiling Diffuser Access door with 1-3/8" deep

Access door with 1-3/8" deep steel roll formed frame

Back blades are parallel to the longest dimension

CSFM California State Fire Marshal listed

One piece curved frame with gasket fits flush to spiral pipe

600TFG Series Lattice Return Air Filter Grille for T-Bar Step Down Ceiling Diffuser Access door with 1-3/8" deepStandard Features Aluminum lattice Hinged removable extruded aluminum face frame with signature line marks Face set in an outer T Bar filter grille frame Hand operated lever for easy filter access Square collar designed for a 20 20 duct Holds up to a 2 filter (not included) Rust resistant pre coat with durable powder finish Soft White Options Preformed, contour molded fiberglass back with a foil barrier backing, accepts 6" 16" collar (collar by