20x25x4 (3 5/8) Pleated MERV 14 Air Filters 6 Pack microbes • Biofungicide (Bacillus subtilis)

• Biofungicide (Bacillus subtilis)

Backlit remote indicator connected by normal telephone cable

The KDF85 + Granulated Catalytic Activated Carbon combination removes up to 99% of both chlorine and chloramines — making it more effective than standard carbon-only filters for municipal water treated with chloramines

May be used solely or added to fertilizers solutions

The complete ONA Carbon-Air is the latest in environmentally friendly odor control

20x25x4 (3 5/8) Pleated MERV 14 Air Filters 6 Pack microbes • Biofungicide (Bacillus subtilis)Important 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