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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
stair risers
To adjust diffuser
Front blades are parallel to the shortest dimension
Flush core and frame provides smooth surface
Recommended Minimum Sleeve Thickness for Fire Dampers
Parallel Volume Damper Low Leak 3000PLL-50X14 Commercial stair risersh3. 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$ 13.00
US$ 104.50
US$ 18.95
