13x21x1 Exact MERV 7 AC Furnace Filters 12 Pack pumps-and-irrigation-supplies Shelf life is typically 2–3

Shelf life is typically 2–3 years when stored properly

Containing dual-ball bearings rated at 67

Elevated airflow accommodating design

disposable SMS suits keep you safe throughout damp and dry jobs

it will resist the elements for many years of service

13x21x1 Exact MERV 7 AC Furnace Filters 12 Pack pumps-and-irrigation-supplies Shelf life is typically 2–3Nordic 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