16x20x4 (3 5/8) Pleated MERV 13 Air Filters 6 Pack harvest-solution This product also moves into

This product also moves into and protects new growth after application

The materials inside the inner glass envelope are the salts that compromise the proprietary gas chemistry in SupremeLux Lamps

PPFD - 2703 μmol @ 12” vertical distance

or 30" Tube Length

The TurboKlone 913024 cloning system is the ideal home cloning machine for first-time users

16x20x4 (3 5/8) Pleated MERV 13 Air Filters 6 Pack harvest-solution This product also moves intoImportant 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