WEBDetails. Name: ESP15 12V STANDSBY SUMP SYS. Manufacturer: Wayne Water Systems. Made in: China. UPC: 040066203618. GTIN-13: 0040066203618. ESP15 12V STANDSBY SUMP SYS - Compare Prices in Real-time, Set a Price Alert, and see the Price History Graph to find the cheapest price with GoSale - America's Largest …