14x22x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses Use SuperCharge in all your

Use SuperCharge in all your hydroponics and soil growing methods

For use on any plants

and a natural soluble mycorrhizal compound

Filled with 100% virgin coconut charcoal

Important Note: Almost all furnace air filters have a different Actual Size (the exact dimensions) than Nominal Size (the name) printed on the air conditioning filter

14x22x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses Use SuperCharge in all yourNordic Pure Custom MERV 7 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