16x20x4 (3 5/8) Pleated MERV 14 Air Filters 2 Pack vacuum pump Features a best-in-class anti-reflective coating

Features a best-in-class anti-reflective coating called "the purps

Avoid direct sunlight

the AMP-2 will display the sensor data on the Aqua-x and on the APP

height extension kit gives you the ability to increase your growing height from 6’7″ to 7’7″

The PotPro™ 5 Gallon Bucket is the newest member of the revolutionary PotPro™ line

16x20x4 (3 5/8) Pleated MERV 14 Air Filters 2 Pack vacuum pump Features a best-in-class anti-reflective coatingImportant 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