13" x 21-1/2" x 1" MERV 10 Made To Order Standard Capacity Pleated Filter

The Glasfloss Z-Line Series pleated filters offer improved performance for virtually every application. All Glasfloss Z-Line pleated filters feature fibers which do not absorb moisture and will not support microbial growth. The Glasfloss Z-Line Series SB, ZL and HV filters achieve a MERV 8 rating and MR-11 filters achieve a MERV 11 rating per the ANSI/ASHRAE 52. 2 Test Standard.