Knob
| No. | Material | Applicable Manifold Model |
| A | Aluminum | SBF-L-03、SBF-L-03A、SBF-L-03B、SBF-L-04、SBF-L-04A |
| B | Aluminum | DBF-T-466A、SBF-T-536 Series |
| C | ABS | DBF-L-01 |
| D | ABS | SBF-L-03、SBF-L-03A、SBF-L-03B、SBF-L-04、SBF-L-04A |
| E | ABS | DBF-T-466、SBF-T-601A、SBF-T-536 Series |
| F | ABS | DBF-T-466、SBF-T-601A、SBF-T-536 Series |
| G | Zinc Alloy | DBF-T-466、SBF-T-601A、SBF-T-536 Series |
