20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack flowering Like all our furnace filters

Like all our furnace filters

Specially designed articulating four-bar compound linkage

Although this insecticide is a powerful tool against insect pests

Its metal frame features a brushed anodized aluminum finish and can be mounted onto wall panels and cabinets

This blend provides essential nutrients to all plants

20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack flowering Like all our furnace filtersImportant 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. If you are replacing a 4 3 8 depth 20x25x4 filter