| Air Filter Description | Part Number |
|---|---|
| Filters and backplates for twin carbs with limited space | PX500 |
| Filters and backplates for Porsche 911 with triple Weber IDA carbs | PX550 |
| Filters and backplates for dual carbs and throttle body applications | PX600 |
| 600-series airbox and backplates for dual carbs and throttle body applications | 600 Airbox |
| Filters, baseplates and complete kits for Hart, DFV March/DFV3000 Formula race engines | PX650 |
| Air Filter Description | Part Number |
|---|---|
| Filters and backplates for single carbs | PX300 |
| Filters and backplates as with PX300, with additional outer cage | PX3000 |
| Filters for Formula Ford and Superstox Weber DGV, DGAV, DGAR and DGAS carbs | PX400 |
| Air Filter Description | Part Number |
|---|---|
| Filters for SU carbs | PX150 |
| Air Filter Description | Part Number |
|---|---|
| Filter kit for Holley four barrel carb | PX800 |