29x29x1 MERV 13 AC Furnace Filters 6 Pack spl_allstate 4" Inline duct fan is

4" Inline duct fan is rated for max 200CFM

Advanced Dimmable feature with Use of External B-Lite Master Zone Controller (1W - 660W)

Complex Inline Percolator For Smooth Diffusion

Choose from buckle-style or zipper-style

Each paper is watermarked with a patented Criss-Cross watermark

29x29x1 MERV 13 AC Furnace Filters 6 Pack spl_allstate 4" Inline duct fan isNordic 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