20x20_1/2x1 Exact MERV 7 AC Furnace Filters 6 Pack Steel stake The Neutralizer Replacement Cartridge Retail

The Neutralizer Replacement Cartridge Retail Box contains:

(Ca) Calcium

Operating Environment 20-80°C/-4°-176°F

They are designed to accommodate 2' x 4' propagation rafts ("lettuce rafts")

Unit comes with a sleeved column for dewaxing

20x20_1/2x1 Exact MERV 7 AC Furnace Filters 6 Pack Steel stake The Neutralizer Replacement Cartridge RetailNordic 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