16x20x4 (3 5/8) Pleated MERV 8 Air Filters 6 Pack hydro-components Please avoid storing in direct

Please avoid storing in direct sunlight and protect from freezing

resulting in a more neutral cell sap pH which yields increased purple coloration expressed in the plant

For all other states

repeat in 4 weeks

• Germination & pollination

16x20x4 (3 5/8) Pleated MERV 8 Air Filters 6 Pack hydro-components Please avoid storing in directImportant 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 16x20x4 filter