Remanufactured Two-Line Non-Automatic, Quick release feature eliminates the need for an extra valve. Will not allow trailer brake compounding. Directly replaces competitive valves. MUST BE USED WITH PRESSURE SENSING DASH CONTROL VALVE. 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