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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
1/2" spacing dual angular louvers for strength and maximum free area
Lever operated Multi-Shutter Damper
Back blades are parallel to the longest dimension
Countersunk mounting holes with color matching Phillips Pozidriv screws
Step Down Diffuser with Slide-in Damper 425-12X12 Step Down Ceiling Diffuser 1/2" spacing dual angular louversStandard Features * Steel galvaneal construction * For evaporative coolers or central blower systems * Modern step down design * 4 way air diffusion * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * One piece removable slide damper for off season closure * Soft White
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