Little Giant 6EC-CIA-SFS 1/3 HP, 115-Volt, 3180 GPH Automatic Cast Iron Submersible Sump/Effluent Pump with Polypropylene Base, Integral Snap-Action Float Switch and 10-Ft. Cord, Blue, 506807 - Amazon.com
Little Giant 10EC-CIA-SFS 1/2 HP Automatic Submersible Cast Iron with Plastic Base Sump Pump 510803 - The Home Depot
Little Giant 620233, Model WS50AM-20, Submersible Effluent Pump, 1/2 HP, 115 Volts, 1 Phase, 105 GPM @ 5 Ft. Head, 20 Ft. Cord, 2 inch Discharge, Automatic W/ Piggyback Float
Little Giant 599117 RFSN-9 Piggyback Remote Float Switch for ½ HP Manual Pump - Walmart.com
Little Giant 16G-F151-20, 115V, 2958 GPH, 1 HP Automatic Grinder Pump for Sewage and Effluent Systems with Piggyback Tethered Float Switch, Blue, 509810 - Amazon.com