14x22x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses For best results

For best results

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

Green Aminos is a premium blend of amino acids and proteins derived from the highest quality ingredients

Unique coiled support frame allows for expansion and contraction of the arc tube during operation

pre-amplified pH

14x22x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses For best resultsNordic 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