16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 1 Pack grow media and its dishwasher-safe construction means

and its dishwasher-safe construction means easy and quick cleanup

Hydrofarm's heavy duty measuring beaker offers easy-to-read

Our 32 Gallon

000 Watt ECO Magnetic Ballast 277 Volt 12¼” x 6¼” x 6” 31

Ginormous is designed to make even the most demanding gardeners ecstatic at harvest time

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 1 Pack grow media and its dishwasher-safe construction meansImportant 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,