17 3/4" x 23 3/4" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 23-375w 16" x 25" x 1"

16" x 25" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

23 1/2" x 29 3/4" x 1" MERV 11 - Pleated Air Filter - 6 Pack

The media is made to fit firmly inside the frame giving the washable industrial grade filter its exceptional strength and durability

Actual Dimensions: 15 1/2" x 19 1/2" x 1 3/4"

12" x 20" x 2" Permanent Washable Air Filter - 1 Pack

17 3/4" x 23 3/4" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 23-375w 16" x 25" x 1"17 3 4" x 23 3 4" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 17 3 4" x 23 3 4" x 3 4" Filtration Group's High Capacity MERV 11 air filter is made of 100% Synthetic Media which will not promote mold or bacteria growth and has the following features: MERV 11 efficiency, UL Classified, LEED point certification, 100% recycled paperboard frame, low resistance to air flow minimizes energy costs, 100% synthetic media is moisture resistant,