20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 1 Pack Growing Accessories and top/side application

and top/side application

Double junction pH electrode with 2m cable (BNC connector)

It's active ingredients then cause disruption of respiration and digestion

Hydrofarm's new Phantom CMh System combines our Phantom CMh reflector with the multi-voltage Phantom ceramic halide-specific digital ballast and the Philips double-jacketed Master Power CDM Elite Agro 315W T12 ceramic metal halide lamp

When low battery power may affect your results

20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 1 Pack Growing Accessories and top/side applicationImportant 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