20x20x4 (3 5/8) Pleated MERV 7 Air Filters 1 Pack spl_hi which in turn will increase

which in turn will increase fertility of the soil by forming humus

Dimensions - 90*63*14 cm

Roots Organics Soilless mix allows you the ease of hydroponics with the benefits of a natural and organic soil

Made from all natural and yet gentle ingredients

Replaces a 1000 watt HPS light with 40% less power

20x20x4 (3 5/8) Pleated MERV 7 Air Filters 1 Pack spl_hi which in turn will increaseImportant 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