Size:1220*1220 1200*1200Cell size:12.7*12.7*12.7Air Diffusers ,grilles and registers --All kinds of aluminum/metal/ABS/wooden air diffusers and air grilles, such as ceiling diffusers, floor registers, door grilles ,egg crate grilles,side wall registers...
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aluminum eggcrate sheet duct access door celing diffuser air louver...
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