20x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter 1 Pack new_additions Prozyme stimulates the "pre-digestion" of

Prozyme stimulates the "pre-digestion" of these complex molecules

Made in Germany and engineered in a ISO 9001 certified facility

430W Multi-Volt

Begin applications preventatively

an 8 oz package makes up to 800 gallons and a 2 lb package makes up to 3200 gallons

20x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter 1 Pack new_additions Prozyme stimulates the "pre-digestion" ofImportant 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 20x20x4 filter