Grease-Free Inner Joint, 19/22 Joint Size, 17 mm OD, Borosilicate Glass, Joints are Formed From a Unique Wall Tubing That is Heavier Than Standard Wall Tubing for Extra Strength
Grease-Free Outer Joint, 14/20 Joint Size, 18 mm OD, Borosilicate Glass, Joints are Formed From a Unique Wall Tubing That is Heavier Than Standard Wall Tubing for Extra Strength