Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 14 Plus Carbon 1 Pack lighting-systems/kits 4" Booster In-Line Duct Fan

4" Booster In-Line Duct Fan

If the level is low

Expand the lifetime of your Oakton pH tester by keeping these replacement sensors on hand

or any loose growing media like peat

greenhouses

Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 14 Plus Carbon 1 Pack lighting-systems/kits 4" Booster In-Line Duct FanImportant 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,