Valterra P23506LFVP RV Water Pump Converter Kit Walmart.com Valterra P23506LFVP RV Water Pump Converter Kit Walmart.com Valterra P23507VP RV Antifreeze Hand Pump Kit, Cooling & Water Pump Valterra Water Pump Conversion Kit for RV Winterizing Valterra RV Fresh. Water System Antifreeze Pump Converter; Pump Converter Kit Enables RV Water Pump To Automatically Winterize Water Lines; With Retail Package Since 1981, Valterra Products has been a leading supplier of brand name product lines to the RV, pool and spa and plumbing industries. Valterra's maquiladora Contract Manufacturing Division offers low cost custom manufacturing and assembly services to client companies seeking to reduce costs and improve the bottom line. Conversion Type: Enables RV Water Pump To Automatically Winterize Water Lines