16_1/2x21_5/8x1 Exact MERV 10 AC Furnace Filters 6 Pack ventilation and ducting Three-layer SMS is lightweight and

Three-layer SMS is lightweight and breathable

making it compliant with organic certification requirements

- All Natural Formulation

Flange kit and cap sold separately

Elite CalMag ensures that the most common nutrient deficiencies are handled with one treatment

16_1/2x21_5/8x1 Exact MERV 10 AC Furnace Filters 6 Pack ventilation and ducting Three-layer SMS is lightweight andNordic Pure MERV 10 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, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 10 furnace filters are comparable to HVAC filters with the rating of MPR 900 1000. While different companies