16x20x4 (3 5/8) Pleated MERV 13 Air Filters 1 Pack spl_luxx their premium mycorrhizal inoculant

their premium mycorrhizal inoculant

Ultra low energy design delivers high flow and high rejection at only 80psi

• Creates a stronger root system

Horticulturally-optimized spectrum and increased UV promote enhanced plant quality

This breathable fabric allows moisture vapor and heat to escape

16x20x4 (3 5/8) Pleated MERV 13 Air Filters 1 Pack spl_luxx their premium mycorrhizal inoculantImportant 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