PR - Steel Perforated Return Diffuser, Surface Mount, 10x10, 12x12 PERF RET,10X10,12X12,SRF Log in for pricing
PP - Steel Perforated Supply Diffuser, Lay-In, 10 RD, 24x24 PERF SUP, 10, 24X24 LI Log in for pricing
PP - Steel Perforated Supply Diffuser, Lay-In, 10 RD, 20x20 PERF SUP, 10, 20X20 LI Log in for pricing