17x20x1 MERV 7 AC Furnace Filters 12 Pack ac-dehumidification-humidification It combines an Xtrasun enclosed

It combines an Xtrasun enclosed double-ended reflector with a variable-wattage Xtrasun DE ballast and a high-PAR Xtrasun DE high-pressure sodium lamp

Water in thoroughly after application to activate colonization

Easy installation

and Rust Mite (Eriophyidae)

06” Total Height 5

17x20x1 MERV 7 AC Furnace Filters 12 Pack ac-dehumidification-humidification It combines an Xtrasun enclosedNordic Pure MERV 7 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 and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters