• 1/2" spacing dual angular louvers for strength and maximum free area • Stamped steel face with roll formed frame • Hinged removable face with hinges parallel to longest side • Hand operated lever for easy filter access and cleaning • 4-way reversible door on square sizes • Concealed mounting holes with mounting screws • Holds up to a 2" filter (not included) with filter retention tabs (FG2) • Rust resistant pre-coat with durable powder finish • Soft White
