20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 1 Pack coco-cubes no synthetic hormones are used

no synthetic hormones are used

and thousands are in use by satisfied gardeners worldwide

Place the cover on top of your 6 inch cube and instantly block light allowing roots to flourish and prevent algae

Bluelab Pro Controller automated pH and nutrient controller gives you full control of reservoir pH

a full 6 inches wider than the rest

20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 1 Pack coco-cubes no synthetic hormones are usedImportant 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,