Our BD Air Filter comes in multiple coupler sizes that you can choose from depending on your particular needs. On this page you can also find our BD Prefilter only if that's what you're looking for.
- Air Filter with Straight 3.0" Silicone Coupler
- Air Filter with Straight 2.75" Silicone Coupler
- Air Filter with a 3" to 2" Reducing 90 degree Silicone
- Only the Prefilter