20x22_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack complete grow kit Using thermal electric Peltier technology

Using thermal electric Peltier technology

simply remove the steam canister and replace

Koalas and dingoes sold separately

Magnesium Carbonate and Magnesium Sulfate

20x22_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack complete grow kit Using thermal electric Peltier technologyNordic Pure Custom MERV 8 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