16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Synthetic Pro Edition Hydro Innovations uses a high

Hydro Innovations uses a high quality

• Full Spectrum with High Red to Optimize the Flowering and Fruiting Stage

Magnesium is also critical for the uptake and migration of phosphorous in plants

No Returns on pandemic/health items

Has no maximum number of spray applications per season

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Synthetic Pro Edition Hydro Innovations uses a highImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,