Wayne WSS30Vn - 1/2 HP Combination Primary and Backup Sump Pump System

This Wayne Sump Pump System provides complete and ultra-quiet protection against basement flooding. System includes a cast iron 1/2 HP primary pump and a 12 Volt backup pump, pre-assembled and pre-plumbed for quick and easy installation. Requires check valve, not included. Features + Benefits 1/2 HP 115 Volt epoxy-coated cast iron pump 12 Volt reinforced thermoplastic backup pump Audible alarm alerts homeowner when DC (12V battery powered) pump is running