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Full-length screwdriver operated Scoop Extractor
AA-HVL Series Engineering/Performance Data
T-Bar hinged 2 Cone Step Down Diffuser with Round Collar
* 2534 - Square or rectangular spring actuated (6) for horizontal or vertical mount
CB40 - four way * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * CB40 O - recessed screwdriver operated opposed blade damper * Square to round No Labor Collar (square sizes only) * 700 CB and CB T - T-Bar mount * SCB - steel version * Tamper proof screws * Standard Color
Pressure Relief HD 3530-8X12 Residential Registers & Grilles Full-length screwdriver operated Scoop Extractorh3. Standard Features * 3510 Vertical mount * 3520 Horizontal mount air up * 3530 Horizontal mount air down * Designed to open with negative or positive pressures for intake or exhaust air * Felt edge blades to hold noise to a minimum * Aluminum construction * Blade to blade linkage * 1 4" pivot pins in nylon busings * Maximum size 24 x 24 * Mill finish h3. Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various
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