20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack veg nutrients Product is stable for up

Product is stable for up to 12 months when stored properly

Digital temperature control

Each control group supports cable runs of up to 100 meters

63 x PotPro™ | Link x 2ft (unit)

20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack veg nutrients Product is stable for upImportant 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 20x20x4 filter