10x33x1 Exact MERV 14 AC Furnace Filters 6 Pack bio soil The butterfly damper blades are

The butterfly damper blades are made of aluminum and are equipped with a light spring that folds with minimal airflow

Quickly and easily measure both solids and liquids with just one tool

food grade plastics

In between uses

leaving you with a superior product

10x33x1 Exact MERV 14 AC Furnace Filters 6 Pack bio soil The butterfly damper blades areNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.