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Allows for 2-way airflow adjustment
Locking screw to hold damper in place
SD52 - Transition Box Spiral Pipe Grille (Single Deflection)
PERFORMANCE DATA 845 Series Engineering/Performance Data
14" and 16" * Soft White Options * Field installable Bowtie Damper (BD) * FTD - Fixed T-Bar Diffuser (6"
Backdraft Vertical Mount 3550-10X10 Smoke-Fire Damper Allows for 2-way airflow adjustmenth3. 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$ 23.98
US$ 14.99
US$ 26.99
US$ 42.98
