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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
1/2" spacing dual angular louvers
SD52 - Transition Box Spiral Pipe Grille (Single Deflection)
linkage and handle enclosed in 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 * 200 O - steel lever operated opposed blade damper * Tamper proof screws * Standard Color
Round ceiling radiation butterfly damper
Nylon bushings on adjustable blades to prevent metal on metal rattle
Fixed Bar Blade Filter Grille 935FG-20X20 Finish:Blue 1/2" spacing dual angular louversStandard Features * 45 degree fixed blades parallel to the longest dimension * Hand operated lever for easy filter access * Holds up to 2" thick standard filter (not included) * Removable face for easy cleaning and maintenance * Filter door hinges parallel to longest side * 4 way reversible door on square sizes * 2 way reversible door on rectangular sizes * Filter retention tabs * Concealed mounting holes * Soft White Options * SP935FG 4 holds 4" deep
