16x21x1 MERV 13 AC Furnace Filters 12 Pack Liquid & Weight Measuring Water saving polymers save water

Water saving polymers save water and the leaching of nutrients

Create nutrient reserves in the plant

Enjoy up to 60 days of fragrant air with each set of two AA batteries

The insulated damper uses gravity-fed shutters that close the opening when the whole house fan is not in use

93 x PotPro™ | Link x 1ft (unit)

16x21x1 MERV 13 AC Furnace Filters 12 Pack Liquid & Weight Measuring Water saving polymers save waterNordic 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