| NPQR-L-G14-Q6 | 4 mm | 13.1 mm | 21.6 g | External hexagon, A/F 15 mm | For tubing outside diameter of 6 mm |
| NPQR-DK-G14-Q6 | 4.2 mm | 16 mm | 12.8 g | Internal hexagon, size 4 mm | For tubing outside diameter of 6 mm |
| NPQR-BK-G18 | — | — | 4 g | Internal hexagon, size 5 mm | — |
| NPQR-DK-G18-Q10 | 5.3 mm | 19.35 mm | 19.1 g | Internal hexagon, size 5 mm | For tubing outside diameter of 10 mm |
| NPQR-T-G18-Q8 | 6 mm | 13 mm | 28.9 g | External hexagon, A/F 13 mm | For tubing outside diameter of 8 mm |
| NPQR-L-G18-Q8 | 6 mm | 13 mm | 23.5 g | External hexagon, A/F 13 mm | For tubing outside diameter of 8 mm |
| NPQR-DK-G18-Q8 | 5.3 mm | 16.8 mm | 14.7 g | Internal hexagon, size 5 mm | For tubing outside diameter of 8 mm |
| NPQR-T-G18-Q6 | 4 mm | 13.1 mm | 20.4 g | External hexagon, A/F 13 mm | For tubing outside diameter of 6 mm |
| NPQR-L-G18-Q6 | 4 mm | 13.1 mm | 16.4 g | External hexagon, A/F 13 mm | For tubing outside diameter of 6 mm |
| NPQR-DK-G18-Q6 | 4.2 mm | 16 mm | 11.4 g | Internal hexagon, size 4 mm | For tubing outside diameter of 6 mm |
| NPQR-L-G18-Q4 | 2 mm | 11 mm | 12.1 g | External hexagon, A/F 13 mm | For tubing outside diameter of 4 mm |
| NPQR-DK-G18-Q4 | 2.6 mm | 14 mm | 7.5 g | Internal hexagon, size 2.5 mm | For tubing outside diameter of 4 mm |
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