The "SludgeBoss" Heavy Duty Float Switch for Use With Sewage, Suspended Solids and Viscous Liquids (20-Foot Cable) SA-2368-6 - The Home Depot
PHCC PRO SERIES, 110V AC, 10 ft Cord Lg, Float Switch - 49AX06|VSC2 - Grainger
Dual Float Switch - Temco Controls Ltd.
Amazon.com: Xnrtop 4M Cable Float Switch Water Level Controller for Tank Pump : Tools & Home Improvement
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) - -