Description Shut off for 1/2 inch ID tubing. 13mm Size is based on Inside Diameter of Tubing **Improved in 2023 with a better material to prevent cracking** Not Grade A approved Works with goat milkers using 1/2 inch and 7/16 ID tubing including Hamby, Caprine Supply, Parts Dept, Coburn, and Interpuls Provides 100% shutoff Use with clear or silicone milk hose options at links below 63549 962607 033-1/2 2827-0000 Made in Italy updated 3/26
