14_1/2x27_1/2x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack refurbished-products 2) Apply to plastic film

2) Apply to plastic film

Midges (Chironomus plumosus)

Tomatoes - Preventative: 1-3 P

Caterpillars/Moths

14_1/2x27_1/2x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack refurbished-products 2) Apply to plastic filmNordic Pure Custom MERV 8 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