Glasfloss Industries ZLP20254 Z-Line Series ZL 20x25x4 MERV 8 Pleated Filter (case of 6)
The Glasfloss Z-Line Series pleated filters offer improved performance for virtually every application.  The mechanical structure of the media fibers sustains efficiency over the service life of the filter and produces high dust-holding capacity.  All Glasfloss Z-Line pleated filters feature fibers which do not absorb moisture and will not support microbial growth. The Glasfloss Z-Line Series ZL filters achieve a MERV 8 per the ANSI/ASHRAE 52.2-2007 Test Standard.