To Order Please call: (352) 376-2366.....Comfort Filters can produce virtually any size or type of filter with thicknesses of ½”, 1”, 2”, and 4”. Custom size air filters are built to your exact specifications. These filters are built to order and are shipped in quantities of twelve (12) for thicknesses two inches and less; and quantities of six (6) for thickness of four inches. Please have exact measured size (length, width, and height) information before ordering, these filters may not be returned for a refund or credit. All custom size air filters are built to tolerances of + or – 1/8”. Please allow for two to three weeks for these filters to be built and delivered. Thank you.