| Plug-in Reducer, 3666 06 08, LF 3600 Series, Straight, 6 x 8 mm Tube OD | 3666 06 08 | 6 x 8 | 6 | | €9.42/piece |
| Plug-in Reducer, 3666 08 12, LF 3600 Series, Straight, 8 x 12 mm Tube OD | 3666 08 12 | 8 x 12 | 8 | | €12.08/piece |
| 3666 04 08 Plug-in reducer Ø4mm x Ø8mm | 3666 04 08 | | 4 | | €9.11/piece |
| 3666 10 12 Plug-in reducer Ø10mm x Ø12mm | 3666 10 12 | | 10 | | €16.77/piece |
| Plug-in Reducer, 3666 04 06, LF 3600 Series, Straight, 4 x 6 mm Tube OD | 3666 04 06 | 4 x 6 | 4 | | €8.20/piece |
| Plug-in Reducer, 3666 08 10, LF 3600 Series, Straight, 8 x 10 mm Tube OD | 3666 08 10 | 8 x 10 | 8 | | €11.35/piece |
| Plug-in Reducer, 3666 12 14, LF 3600 Series, Straight, 12 x 14 mm Tube OD | 3666 12 14 | 12 x 14 | 12 | | €20.03/piece |
| Plug-in Reducer, 3666 06 10, LF 3600 Series, Straight, 6 x 10 mm Tube OD | 3666 06 10 | 6 x 10 | 6 | | €11.66/piece |