HACK/ STRONGER Media Type: Dry Material Water Level Float Switches, Plastic, Model No.: M15-2
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
Amp Pro Mechanical Float Switch with Piggyback — Wholesale Septic Supply
Why does my septic system has separate ON and OFF float switches? : r/Plumbing
Float Switch - Vertical Mount-FLT-E
Float Switch with 33 ft. Cable, Sump Pump (5-Year Warranty) SA-2359-10 - The Home Depot