Tefen Nylon 66 Hose Fitting, Coupling, Gray, 1/2" Hose ID (Pack of 10) Coupling for connecting two hoses in a straight run Connects to hose on both ends Nylon 6/6 for lightweight, strength, and resistance to corrosion from most chemicals and solvents Maximum operating pressure of 200 psi (14 bar) at 68 degrees F (20 degrees C) in a temperature range of -5 to +230 degrees F (-20 to +110 degrees C), subject to application Meets NSF/ANSI 61 standard