16x20x4 (3 5/8) Pleated MERV 12 Air Filters 2 Pack growing-media Field growers should apply Z7

Field growers should apply Z7 at first planting and whenever possible thereafter

A low-linting

Tool comes with 3 x 656-foot (200M) rolls of brown twist tie

Color Temp / CRI 5500 /75 K/CRI

A high performance drainage layer is especially important if your plants are grown in plastic containers or with saucers underneath which can trap excessive moisture and create a soggy root zone

16x20x4 (3 5/8) Pleated MERV 12 Air Filters 2 Pack growing-media Field growers should apply Z7Important 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