20x25x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 6 Pack Chemicals RAW GROW is used through

RAW GROW is used through out the entire vegetative stage

and other limited spaces

Small electrical tap accepts 2/0 to 6/0 wire on the TAP side & 1/0 to 300MCM wire on the MAIN side

reducing waste and increasing the return on your investment

and the patent pending easy slide steps designed to accelerate growth through aerated convection

20x25x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 6 Pack Chemicals RAW GROW is used throughImportant 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