21x23_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Reflective & Greenhouse Films It shouldn’t have to be

It shouldn’t have to be one or the other

Optimize Coverage - 3ft × 3ft

The Power Sprayer Mini features an ergonomic handle as well as an LCD screen to display the current power level

Feedlots & Agricultural Operations – Deploy multiple traps across large acreage to reduce migrant fly populations

or permanent installation required

21x23_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Reflective & Greenhouse Films It shouldn’t have to beNordic 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