Amazon.com: Migro Sump Pump float switch, Water Tank Float Switch for Well Pump, Piggyback Power Cable 6 Foot 16/3, Heater Control Cord ON/Off : Electronics
StormPro SPI Vertical Float Switch - 9 Inch Vertical 10-ft Cord | Sump Pump Switch| StormPro Flood Control
Sludge Boss Septic Float Switch, Heavy-Duty Sewage Pump Switch for Viscous Liquids and Suspended Solids in Wastewater, Mercury-Free Self-Orienting Tank Float for Septic Pumps to 1/2 HP (20 Ft Cable) - Amazon.com
4 Types of Sump Pump Float Switches | Stephens Plumbing
Everbilt Piggy Back Float Switch for Sump and Sewage Pumps EBFSWPB - The Home Depot