14" x 18" x 4" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 34-5w 17 1/2" x 23" x

17 1/2" x 23" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

Actual Dimensions: 9 7/8" x 13 7/8" x 1 3/4"

16 1/2" x 21 5/8" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

Actual Dimensions: 20" x 23" x 3/4

14" x 18" x 4" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 34-5w 17 1/2" x 23" x14" x 18" x 4" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 13 7 8" x 17 7 8" x 3 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, valuable