20x25x4 (True 4.25", aka 20x25x5) MERV 8 "Carrier" Replacement Air Filter (2-Pack)

20x25x4 (True 4.25", aka 20x25x5) MERV 8 "Carrier" Replacement Air Filter (2-Pack) Review

20x25x4 (True 4.25", aka 20x25x5) MERV 8 "Carrier" Replacement Air Filter (2-Pack) Feature

• Actual Dimensions: 19-7/8" x 24-3/4" x 4-1/4" (VERIFY ACTUAL DIMENSIONS CAREFULLY)
• MERV 8 Rated Efficiency 100% Non-Toxic Filter Media.
• Replaces Carrier FILCCFTC0020, FILCCCAR0020 and others ending É0020
• Optional Foam Gasket Included
• Also May Replace FILXXCAR0020 and EXPXXFIL0020.

Why do we list a range of MERV values? Because the ASHRAE 52.2 "MERV" test gives varied results. While other filter manufacturers report the highest score (even if it was only achieved on 1 of 100 tests), we prefer to offer a more genuine report. So the filter another manufacturer calls "MERV 12" may in reality not quite deserve that rating. If we list a single value instead of a range, then rest assured that is the true performance every time. As always, our air cleaner replacement filters are 100% Guaranteed to perform as well or better than the OEM filter they replace.