Remanufactured Bendix SR-5 with Anti-Compounding, Meets FMVSS-121 requirements. Used on trailers with dual air brake systems. Permits the use of a single reservoir on the trailer. Repair kit not available. 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