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screw holes and color matching panhead screws * Standard Color
listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square Collar
Standard Features * Designed for return or exhaust applications * 3/16" holes on 1/4" staggered centers * Heavy gauge steel * Seismic support holes * 1x2
linkage and handle enclosed in valve to assure trouble-free operation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * SCB41 - 4-way air pattern * SCB31 - 3-way air pattern * SCB41 O or SCB31 O - steel lever operated opposed blade damper * SCB42 or SCB32 - no damper * Tamper proof screws * Standard Color
Available blade centers at 1/2"
Diffuser 845-18X18 Damper:Multi-Shutter Damper screw holes and color matchingStandard Features * 3 way diffusion for draft free heat or air conditioning * For ceiling or sidewall applications * All component parts, rivets, linkage, and handle, are enclosed in the valve to assure trouble free operation * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Steel multi shutter damper * Soft White Options * 845 O steel lever operated opposed blade damper * Tamper proof screws * Standard
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