20x25x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack vacuum pump Give your plants the highest

Give your plants the highest quality horticultural light available while minimizing energy consumption

Dimensions - 24

this unit is a twin channel controller

Ships in pieces with pre-wired socket—assembles in minutes

This high-performance HVAC replacement filter will outperform non-electrostatic fiber-glass filters

20x25x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack vacuum pump Give your plants the highestImportant 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