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Ships within 48 hours · Estimated delivery Nov 2 - Nov 7
Zinc plated steel closure spring
3/4” Wide x 3/4” High square holes
One piece stamped steel frame on most common sizes
Aluminum 3 cone T-Bar diffuser with a fixed face
Options * 2800 Series - Dynamic Fire Damper * Sleeve variations * 304 stainless steel construction * Fractional and odd sizes available h3
Parallel Volume Damper Low Leak 3000PLL-70X68 Commercial Zinc plated steel closure springh3. 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
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