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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
Blades run parallel to longest dimension
Standard Features * Return air T-Bar lay-in filter grille * Removable louvered 20 gauge steel face * 20" x 20"x 1" filter (not included) * 7/8" fiberglass back plenum cut holes 6"-16" (collar by others) * Seismic support holes * Soft White
1/4” Wide x 1-27/32” High slots
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 24" Duct Opening (front blades parallel to shortest dimension)
Parallel Volume Damper Low Leak 3000PLL-56X40 Step Down Ceiling Diffuser Blades run parallel to longesth3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3. Options * 3000 PLL Low Leak Air Control
