13x21x1 Exact MERV 7 AC Furnace Filters 12 Pack commercial-lighting-fixture The lock is unique in

The lock is unique in that you can allow the blades to open part way

Industry Leading Horsepower - 30% Bigger Motor

Pots Sizes: 6

20 bulbs per pack

Effective area: Up to 600 sq ft at 10' ceiling height or 6000 cu ft

13x21x1 Exact MERV 7 AC Furnace Filters 12 Pack commercial-lighting-fixture The lock is unique inNordic 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