22x28x1 Exact MERV 7 AC Furnace Filters 6 Pack special-order Introducing the world’s first 1

Introducing the world’s first 1

pH and temperature that the Nutrient Delivery System is providing to the crop will give the grower the confidence that the plants will receive the proper nutrition that they require

Defender PM can also interrupt the reproductive processes of various pests

Two separate set points can be adjusted from 4 to 7 pH and 900 to 1800 ppm (mg/L)

After extensive research and development

22x28x1 Exact MERV 7 AC Furnace Filters 6 Pack special-order Introducing the world’s first 1Nordic Pure MERV 7 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 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters