Since September, 2000, FilterSolution.com has been the reliable source for custom and odd sized aluminum air filters. You can order in practically any size, up to 36" x 60"!
To calculate the correct size of your odd size filter, multiply the height by the width of your filter to determine the total square inches needed, and use the total square inches to determine which size to order.
State exact dimensions (not size printed on the filter) when ordering. If you have an existing filter, measure it before ordering! Custom size air filters are built to your exact specifications. As a result, these filters may not be returned for refund or credit. All custom size air filters are built to tolerances of + or - 1/8".