Designed for use as a crankcase vent filter.
| Part No | Colour | Width | Height | Neck |
| SIM-HI9-BU | Blue | 50mm | 35mm | 9mm |
| SIM-HI9-CH | Chrome | 50mm | 35mm | 9mm |
| SIM-HI9-RE | Red | 50mm | 35mm | 9mm |
| SIM-HI9-YE | Yellow | 50mm | 35mm | 9mm |
| SIM-HI12-BU | Blue | 50mm | 35mm | 12mm |
| SIM-HI12-CH | Chrome | 50mm | 35mm | 12mm |
| SIM-HI12-RE | Red | 50mm | 35mm | 12mm |
| SIM-HI12-YE | Yellow | 50mm | 35mm | 12mm |
| SIM-HI25-BU | Blue | 50mm | 35mm | 25mm |
| SIM-HI25-CH | Chrome | 50mm | 35mm | 25mm |
| SIM-HI25-RE | Red | 50mm | 35mm | 25mm |
| SIM-HI25-YE | Yellow | 50mm | 35mm | 25mm |
Mini Aerotek. Designed for use as a crankcase vent filter.
Width 50mm Height 40mm
Straight Neck
| Colour | Part No. 9mm Neck | Part No. 12mm Neck |
| Solid Blue | SIM-H29-BU | SIM-H212-BU |
| Solid Carbon | SIM-H29-CA | - |
| Solid Chrome | - | SIM-H212-CH |
| Solid Red | SIM-H29-RE | SIM-H212-RE |
| Solid Yellow | SIM-H29-YE | SIM-H212-YE |
| Translucent Blue | SIM-H39-BU | SIM-H312-BU |
| Translucent Red | SIM-H39-RE | SIM-H312-RE |
| Translucent Yellow | SIM-H39-YE | SIM-H312-YE |