16x20x4 (3 5/8) Pleated MERV 13 Air Filters 1 Pack X Nutrients bloom as it tolerates higher temperatures

as it tolerates higher temperatures and lower humidities than P

*No PGRs are used in any of our products

Kelp (Ascophyllum nodosum)

Color Temp / CRI 5500 /75 K/CRI

Includes both Wet and Dry Quantanium Coated Tumblers

16x20x4 (3 5/8) Pleated MERV 13 Air Filters 1 Pack X Nutrients bloom as it tolerates higher temperaturesImportant 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