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Round ceiling radiation butterfly damper
Multi-Shutter Damper standard on 6" widths and larger
904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 30" Duct Opening (front blades parallel to shortest dimension)
Double deflection radius mount spiral pipe grille with adjustable blades
Lever operated steel multi-shutter damper
Floor Register 1550-R-28X36 Finish:Designer Color - Coffee Tan Round ceiling radiation butterfly damperStandard Features Fixed bars with 0 deflection Heavy duty steel honeycomb construction Flush core and frame provides smooth surface Free area equals more than 75% of nominal size Blades run parallel to longest dimension Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system Rust resistant pre coat with durable powder finish Driftwood Tan Options Reinforced welded core and extra supports for heavy duty
