20x20_1/2x1 Exact MERV 8 AC Furnace Filters 6 Pack double-ended Recirculating: Use 5-10 ml of

Recirculating: Use 5-10 ml of Royal Flush per gallon of pure water in your reservoir and run the system for an initial 20-60 minutes

Product Highlights Fits High Pressure Sodium ballast

Adjustable setpoints

reduces storage and shipping costs and takes minutes to assemble

Speed: Variable 0-80 RPM

20x20_1/2x1 Exact MERV 8 AC Furnace Filters 6 Pack double-ended Recirculating: Use 5-10 ml ofNordic Pure MERV 8 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 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters