20x25x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 1 Pack harvest-solutions Nordic Pure 20x20x1 MERV 13

Nordic Pure 20x20x1 MERV 13 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

the new Xtrasun CMh systems are the ticket

Covers approx 120 square feet

Input Voltage:                                    110-240 VAC

Potassium helps improve the quality of your plant’s flowers and starch production

20x25x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 1 Pack harvest-solutions Nordic Pure 20x20x1 MERV 13Important 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