21_1/2x23_3/8x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Amendment Hydrofarm’s 4' x 8' rolling

Hydrofarm’s 4' x 8' rolling bench system is made of heavy-duty galvanized steel and will maximize the grow space in your greenhouse or grow room

There are two pockets in the top of the case especially made for meter probes

The Spring Pot Burner 65 gallon tan fabric pot grow bag is the smart pot choice for hobby and commercial growers looking for an optimal performance grow bag that air-prunes roots for faster plant growth and higher harvest yields

Only use with EYE HORTILUX e-Ballasts

21_1/2x23_3/8x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Amendment Hydrofarm’s 4' x 8' rollingNordic Pure Custom MERV 12 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition