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Low profile design for tight mechanical areas
w/ Tool Operated Opposed Blade Damper
SD52 - Transition Box Spiral Pipe Grille (Single Deflection)
904 - Double Deflection Adjustable Aluminum Blade Grille for a 48" x 18" Duct Opening (front blades parallel to shortest dimension)
375 Series Submittal
Backdraft Vertical Mount 3550-16X30 Specialty Products Low profile design for tighth3. Standard Features * 3550 Vertical mount * 3560 Horizontal mount air up * 3570 Horizontal mount air down * 3580 Round sizes available 5" to 24" * All non motorized backdraft dampers * Dampers are opened by air pressure differential and closed by gravity * 16 gauge channel frame with 26 gauge galvanized blades * Out of airstream linkage * Blades are vee stiffened 26 gauge for strength and stability * Square steel pivot pins * Nylon bushings * Single
US$ 30.00
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US$ 40.00
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US$ 16.60
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