How big is the sixth clip?

19-29mm. According to the international standard, the stainless steel hose clamp can be screwed by hand to quickly assemble pipes, and the international standard for holding the hose clamp to fasten the clamp 6 is19-29mm. The six branch pipes are usually DN20 pipes. The inner diameter of DN20 pipes is 19.05 mm, the outer diameter is usually 25 mm, and the wall thickness is 2.8 mm The commonly used six pipe joints are: 6 straight-through, 45-degree elbow, 90-degree elbow and tee.