17x17x1 Exact MERV 7 AC Furnace Filters 12 Pack Misc Assembled Dimensions - 18" x

Assembled Dimensions - 18" x 14" x 17"

Soluble Potash (K2O)…………………4%

Does this filter remove nutrients or pH-adjusting compounds

They are custom made and will last you for many years

adding insulation to the internal tubing to protect it from excessively humid environments

17x17x1 Exact MERV 7 AC Furnace Filters 12 Pack Misc Assembled Dimensions - 18" xNordic 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