The Haldex Push-Pull Trailer Air Supply Valve is designed to provide reliable and durable operation for your trailer air supply system. This valve is constructed with a corrosion resistant aluminum body and stainless steel internal components, ensuring safe and reliable operation. The valve is designed to maintain a pop pressure of 35± 10 psi and a non-override pressure of 25± 5 psi. It also features 1/4" NPT exhaust and delivery ports for easy installation and maintenance. This valve is the perfect choice for your trailer air supply system, providing reliable and durable performance. FleetPride is your First Click in Heavy Duty®.