Air Bear 20x25x5 (4 7/8) Replacement 259112-102 MERV 12 Air Filters 2 Pack Water Filtration There are two indications as

There are two indications as to when to change your membranes

7 lbs) Net Weight

Best in Test at Bess Lab

The Nanolux DE fixtures are NCCS APP ready

High-volume 400 CFM fan operation performs complete air change within 2-10 minutes in a typical room size of 10′ x 10′ x 8′ (800 cubic feet)

Air Bear 20x25x5 (4 7/8) Replacement 259112-102 MERV 12 Air Filters 2 Pack Water Filtration There are two indications asImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 3 8 and 5 1 4 inch depth filters,