Features and Benefits of Barbed Fittings -- For secure fit and easy installation without clamps, glue, or tools. UV Resistant -- Withstands heat, direct sun and harsh chemicals. One-piece Construction -- for added strength durability, and long-term performance. Allows for easy on-site inspection. Applications: 17mm fits Netafim Techline HCVXR CV, DL, RW, and RWP Driplines, and PE irrigation hose.