20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 1 Pack commercial-greenhouse-fixtures Zyme incorporates other select biocatalysts

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

Power supply unit with international plug adapters for North America

fish tanks

Omnivrous Looper Spanworm

Place your 4

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 1 Pack commercial-greenhouse-fixtures Zyme incorporates other select biocatalystsImportant 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,