Custom-Sized Air Filter Policy

  • Custom filters are made specifically for you and cannot be returned - please measure carefully!
  • Unlike stock sizes - custom filters are made to the exact measurement that you specify.
  • 1" custom filters will be 3/4" in thickness, 2" custom filters will be 1 3/4" in thickness, 4" custom filters will be 3 3/4" in thickness.
  • Custom-sized air filters are built to tolerances of +/- 1/8".
  • The manufacturing of extra-large sizes may consist of more than one filter taped together.