In Line Style Regulates air pressure to each ABS controlled brake Compatible with all versions of Meritor WABCO Style ECUs 12 Volt 1/2 - 14 NPT Modulator Valve Ports Truck/Tractor Application Product Features:Remanufactured parts are completely disassembled and wearable parts replaced providing longer life than rebuilt partsISO 9001 and MERA member certifying repeatable processesRemanufactured in the USA