16x21_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack biological fertilizer minerals are left behind

minerals are left behind

our mid-length RAY44 offers six spectral choices and is perfect for side canopy lighting over a 4-foot area

Lush green colors and vigorous growth are what you can expect with Verde

Optional lighting fixtures are available that allow for easy installation of fluorescent or LED fixtures

it takes about 10 minutes with our 11 Watt unit

16x21_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack biological fertilizer minerals are left behindNordic Pure Custom MERV 7 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