Air Bear 20x25x5 (4 7/8) Air Filter Replacement MERV 14 Plus Carbon 4 Pack air-purification EuroponicRockwool Conditioning Solution™ is ideal

EuroponicRockwool Conditioning Solution™ is ideal for pre-conditioning rockwool and stonewool growing media products before starting seeds

the Trolmaster app will provide real-time data and user notifications from the HCS-3

Thyme Guard can be mixed with other products

durable garden shelving unit that features six shelves

and green spectrum than standard high pressure sodium lamps

Air Bear 20x25x5 (4 7/8) Air Filter Replacement MERV 14 Plus Carbon 4 Pack air-purification EuroponicRockwool Conditioning Solution™ is idealImportant 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 3 8 and 5 1 4 inch depth filters,