Stratus ERFG BLACK Plastic Filtered Air Return w/20"x20" sq. opening
SKU#: 4989BK-EC-2020PLASTIC 2'x2' BLACK Egg Crate Filtered Return w/20" sq. opening (#4989BK-EC-2020) No back plate or collar system. Fits in a 2'x2' ceiling grid system. 20" x 20" open back. Accepts a 20" x 20" pleated filter, not included.