20_1/2x25_1/2x1 Exact MERV 8 AC Furnace Filters 6 Pack Pumps & Irrigation - Automatic adjustment of operational

- Automatic adjustment of operational differential to keep conditions closest to set points

Waves are stopped by dense walls so they are contained in the growing area

Five bright green LED lights won't interrupt plants' natural cycle and the cap's white brim contrast stitching helps you stand out during the daytime

and patented technologies

Proudly made in the USA

20_1/2x25_1/2x1 Exact MERV 8 AC Furnace Filters 6 Pack Pumps & Irrigation - Automatic adjustment of operationalNordic Pure MERV 8 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters