Nordic Pure 16x20x4 Plus Carbon Air Filters MERV 8 are made of a dual material where the MERV rated material has been fused together with a carbon layer
Nordic Pure MERV 15 air filters work great in newer
This offers the grower a lighter weight option than heavy bags of wet soil
• 85% Noise Reduction Coefficient (NRC)—best on the market
25 x 7707030: 42 x 8 x 4707035: 44 x 6 x 4707060: 36 x 22 x 7
25x28x1 Exact MERV 13 AC Furnace Filters 6 Pack spl-athena Nordic Pure 16x20x4 Plus CarbonNordic Pure MERV 13 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, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200