Home Air Conditioning Filters “18x20x1 Air Filter: MERV 8, MPR 600, 4-Pack” “18x20x1 Air Filter: MERV 8, MPR 600, 4-Pack” Mike Izzo Mar 05, 2023 comments off Tweet on Twitter Share on Facebook Pinterest Price: $25.35(as of Mar 05,2023 12:33:02 UTC – Details)