Hydro Flow?/Netafim?s 12 mm EZ Dripline fittings are a one-piece construction for added strength, durability and long-term performance. The 12 mm dripline fittings are barbed fittings for a secure fit and easy installation without clamps, glue or tools. Its UV resistance withstands heat, direct sun and harsh chemicals. The 12 mm design fits Techline EZ with inside diameter of 12 mm. Maximum recommended system pressure: 50 psi.