14x14x1 Pleated MERV 13 Air Filters 12 Pack Emitters NO DYES (Why do others

NO DYES (Why do others add dyes

The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium

The flanges can also be reversed to prolong the life of the filter

- 10'' flange pre-installed

The sleek finish of the blade also reduces cleaning and maintenance times and is compatible with the Centurion Tabletop trimmer

14x14x1 Pleated MERV 13 Air Filters 12 Pack Emitters NO DYES (Why do othersNordic 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