Description Poly 90 for Milk tubing Non Vented 1/2 inch x 1/2 inch or 15mm x 15mm Use with half inch hose / tubing Fits: Capralite Caprine Supply Caprine style milker Coburn Easy Pour Quarter Milker RJB QMI Quarter Milker Not Grade A approved because of hose barb design. Made from Food Grade poly or Nylon PL-457 904-252001 Made in USA Related items; ITP2060060 Vented Grade A poly Elbow 1/2 x 1/2 7120 Poly Barb Y - 1/2 x 1/2 x 1/2 4750 Plastic ShutOff for 1/2 inch tubing 1550 1/2 inch I.D. Silicone Milk or Vacuum hose 1090-002 1/2 inch I.D. Clear Plastic Milk or Vacuum hose 4716 Silicone Milk Hose 7/16 I.D.