20x24x2 Pleated MERV 13 Air Filters 12 Pack Water Treatment • Superior grid pattern design

• Superior grid pattern design and multi-level drainage channels to promote fast and thorough drainage

This shutter fan features an EC-motor that is precisely controlled using PWM (Pulse Width Modulation)

36 – 72-micron are best for pollen

fallacis can also help suppress cyclamen mites in strawberry fields and broad mite in greenhouses

they will naturally crawl up and into the honeycomb material inside the house

20x24x2 Pleated MERV 13 Air Filters 12 Pack Water Treatment • Superior grid pattern designNordic 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