16x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack spl_luxx Platinium HydroStone can be utilized

Platinium HydroStone can be utilized for growing in both rockwool cubes and square pots

Download the Elite Nutrients App here

benches or even in tents

1x 4x4ft Grow Tent(1680D Canvas)

16x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack spl_luxx Platinium HydroStone can be utilizedImportant 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