Product Details: The Haldex 12V Antilock Braking System Valve is a reliable and efficient braking system designed to provide superior braking performance. This valve features a pre-installed reservoir nipple with a swivel and lock nut feature for easy serviceability. The patented FFABS valve with integral spring brake control function ensures maximum braking power and control. The 3/8" control and supply ports are equipped with filters for added protection. FleetPride is your First Click in Heavy Duty®.