2 Pack of 2'x4' White Plastic Perforated tile, 1/2" Perforations This non-corrosive 2'x2' White Plastic Perforated tile, 1/2" Perforations is the perfect ceiling air return for 2'x4' ceiling grid systems. In addition to being a functional component, the plastic air return also serves as a more aesthetically appealing ceiling air vent than an old, rusted metal returns or egg crate-style return. The HVAC diffuser lets return air and heat escape to the plenum. The item is made of durable ABS…