Stratus BLACK Plastic Filtered Air Return w/20"x20" opening (#4989BK-EC-2020) No backplate 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.
Stratus BLACK Plastic Filtered Air Return w/20"x20" opening (#4989BK-EC-2020) No backplate 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.