Create Custom Size HVAC, Air or Furnace Filters

Build your custom air filter for home, commercial or office inย four easy steps!

How to measure your filter
StepEnter your filter dimensions (actual) x x

StepSelect your performance rating

Additional Info

Nominal Depth 1โ€
Actual Depth 3/4โ€
Nominal Depth 2โ€
Actual Depth 1 3/4โ€
Minimum Size
5โ€ x 5โ€
Maximum Size
40โ€ x 40โ€

Please Note: Due material limitations used to build a custom filter, we construct a double filter (two filters fused together) when any filter dimension is larger than 24.75โ€ on both sides and or larger than 29.75โ€ on one side. Please allow up to an additional five (5) business days for processing your custom filter order.

Custom filters are not eligible for return or refund.