Custom size air filters

Older homes and custom systems often need a size no store carries. Caliper makes every filter to order, so a custom size is priced like the next standard size up and ships just as fast. Enter any size from 4" up to 30" × 36", down to 1/16 inch, in 1, 2, 4 or 5 inch depths, in MERV 8, 11 or 13.