17_1/8x26_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack new releases Although our 2-part formulas already

Although our 2-part formulas already provide sufficient levels of Calcium and Magnesium

It contains potassium and 2% Soluble Silicon to reduce stress caused by heat

The Large Gym Bag features the large main zippered compartment which has 2 layers of zippered openings for maximum odor-trapping capabilities

*NOT COMPATIBLE WITH GORILLA SHORTY TENTS

When used in Fuzzy Logic mode

17_1/8x26_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack new releases Although our 2-part formulas alreadyNordic Pure Custom MERV 14 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