Basement Watchdog Float Switch in the Water Pump Accessories department at Lowes.com
The Basement Watchdog BWC1 Sump Pump Dual Float Switch & Controller Blue | eBay
Basement Watchdog BWC1 Dual Float Sump Pump Switch with Controller New | eBay
Basement Watchdog Universal Dual Float Switch with Controller BWC1 - The Home Depot
THE BASEMENT WATCHDOG Model BWSS100 1 HP 6,540 GPH at 0 ft. and 4,400 GPH at 10 ft. Cast Iron/Stainless Steel Submersible Sump Pump with Caged Dual Micro Reed Float Switch - Amazon.com