Grease-Free Inner Joint, 24/40 Joint Size, 21 mm OD, Borosilicate Glass, Joints are Formed From a Unique Wall Tubing That is Heavier Than Standard Wall Tubing for Extra Strength
| Diameter | : | 21 mm OD |
| Material (ml/min) | : | Borosilicate Glass |
| Standard Taper Joint | : | 24/40 |