20_1/2x25_1/2x1 Exact MERV 12 AC Furnace Filters 6 Pack cube Hanna's line of calibration solutions

Hanna's line of calibration solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet

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20_1/2x25_1/2x1 Exact MERV 12 AC Furnace Filters 6 Pack cube Hanna's line of calibration solutionsNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different