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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
7/8” Wide x 7/8” High square holes
Square to round transition collar
to 23 29/32"
Type 316 stainless steel
Parallel Volume Damper Low Leak 3000PLL-70X28 Accessories 7/8” Wide x 7/8” Highh3. 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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