20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 1 Pack commercial-greenhouse-fixtures This blend of Coco and

This blend of Coco and Perlite is a perfect mix for your garden

Programming includes automated triggers

fish tanks

Zyme incorporates other select biocatalysts that directly assist enzymes by increasing the speed of natural processes in the rhizosphere

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 1 Pack commercial-greenhouse-fixtures This blend of Coco andImportant 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,