Fixed Bar Blade Filter Grille 935FG-20X24 Commercial 4-way flush step down steel

4-way flush step down steel diffuser

Rust-resistant pre-coat with durable powder finish

53% free area * 1306: 3/4" lattice opening

Double deflection transition box mount spiral pipe grille

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 30" Duct Opening (front blades parallel to shortest dimension)

Fixed Bar Blade Filter Grille 935FG-20X24 Commercial 4-way flush step down steelStandard Features * 45 degree fixed blades parallel to the longest dimension * Hand operated lever for easy filter access * Holds up to 2" thick standard filter (not included) * Removable face for easy cleaning and maintenance * Filter door hinges parallel to longest side * 4 way reversible door on square sizes * 2 way reversible door on rectangular sizes * Filter retention tabs * Concealed mounting holes * Soft White Options * SP935FG 4 holds 4" deep