16x26x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack featured - 0-0-0 NPK Can Be

- 0-0-0 NPK Can Be Added to Any Schedule

20 pounds treats 256 square feet

persimilis PLUS are reared in an innovative way to include mobile mites (adults and juveniles) PLUS eggs in each bottle

cyclamen mites

chemical and rust proof

16x26x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack featured - 0-0-0 NPK Can BeNordic 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