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Front blades are parallel to the shortest dimension
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 30" Duct Opening (front blades parallel to shortest dimension)
Ceiling opening must be 4” larger in length and width than the nominal duct size
Minimum size is 4"x4"
Square collar designed for a 20” × 20”
Parallel Volume Damper Low Leak 3000PLL-50X14 Commercial Front blades are parallel toh3. 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
US$ 19800.00
US$ 22500.00
