20x25x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack spl_hgc Potassium Bicarbonate (baking powder)

Potassium Bicarbonate (baking powder)

Keep your eyes relaxed and protected with our MH grow glasses

Long-Term Storage – Maintain product freshness in storage vaults

Exclusive EYE Hortilux spectrum

Males are present in much lower numbers than females and are darker in color

20x25x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack spl_hgc Potassium Bicarbonate (baking powder)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