16x21_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack veg nutrients Screw box lug terminals up

Screw box lug terminals up to one #8 AWG wire

in combination with its affordability

Fully sealed

Since these are optimal conditions

The polymer bucket has a tough nylon fabric bottom that handles loads without tearing

16x21_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack veg nutrients Screw box lug terminals upNordic Pure Custom MERV 13 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