21x23_1/2x1 Trane Replacement MERV 13 AC Furnace Filters 6 Pack bio soil The internal gears inside the

The internal gears inside the locking ratchet are all built with stainless steel parts for a long-lasting smooth operation

· Proper eye protection needs to be used at all times as intense UV light can cause permanent damage to the eyes

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21x23_1/2x1 Trane Replacement MERV 13 AC Furnace Filters 6 Pack bio soil The internal gears inside theNordic Pure MERV 13 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, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200