21x27x1 Trane Replacement MERV 8 AC Furnace Filters 6 Pack complete-systems Each container contains 7 million

Each container contains 7 million organisms of nematodes

The BETA-2 can control variable-speed fans by using the current temperature to increase or decrease the fan speed

Flange: 6" Fixed

16 ft cord

The fans are set to exhaust out heated air out the front and should be positioned near the top of the rack

21x27x1 Trane Replacement MERV 8 AC Furnace Filters 6 Pack complete-systems Each container contains 7 millionNordic 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