JIS B2351 & DIN 2353 Standard
6 to 42 mm OD
Bite type fitting consists of three parts : Body , Sleeve and Nut, and is designed to work over medium and heavy wall tubing.
When tightening nut, sleeve driven forward on the tube then bites the tube with the dege of sleeve, this is how sealing is achived and results ininternal ridge inside the tube.