16x20x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 6 Pack Pumps & Irrigation providing highly accurate results wherever

providing highly accurate results wherever you test

Charging Time - ~3 Hours

GARDEN SOLUTION® is a microbial technology for growers that sustainably improves plant health

10" double cinching ventilation ports and 4 inch wire ports everywhere you need them

inline shut-off

16x20x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 6 Pack Pumps & Irrigation providing highly accurate results whereverImportant 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