The Power Products 3/4" Brass Hose Barb Union is designed to meet DOT and SAE requirements, making it a great choice for a variety of applications. It has a temperature range of -65 ° to +250 °F and a maximum working pressure of 400 psi. It also offers decent resistance against vibration and corrosion, making it a reliable and durable choice. This union is perfect for connecting two hoses and will provide a secure and reliable connection. FleetPride is your First Click in Heavy Duty®.