21x21x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Water Filtration Package: 125 pcs per case

Package: 125 pcs per case

offering a secure fit that helps keep dust and other contaminants out

Introducing De

depending on temperature and moisture and the female Trichogramma will parasitize up to 300 pest moth eggs

21x21x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Water Filtration Package: 125 pcs per caseNordic Pure Custom MERV 12 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