High efficiency, short depth 4″ filter pack that maintains efficiency throughout the life of the filter

Mini-pleated microfine media bonded to an enclosing frame that includes integral diagonal support members of high wet strength beverage board. Available in MERV 11, 13, 14, 15, 16 with corresponding MERV-A values of MERV 11-A, 13-A, 14-A, 15-A, 16-A.