20x24x1 Pleated MERV 13 Air Filters 6 Pack soil nutruient Top and bottom flanges curved

Top and bottom flanges curved back to increase strength

Thermal Management - Passive

a pest of many plants in indoor and outdoor gardens

Easy to view level indicators keep nutrient levels exactly where they should be

20x24x1 Pleated MERV 13 Air Filters 6 Pack soil nutruient Top and bottom flanges curvedNordic 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