13_1/4x13_1/4x1 Exact MERV 8 AC Furnace Filters 6 Pack PPE Tumbler Diameter: 3 x 6

Tumbler Diameter: 3 x 6

Dimming Settings: 600-1200

Many of Bluelab's conductivity equipment does not need calibrating as they are factory calibrated here at Bluelab

the DaPlugs can be transplanted

13_1/4x13_1/4x1 Exact MERV 8 AC Furnace Filters 6 Pack PPE Tumbler Diameter: 3 x 6Nordic 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