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
VEVOR Sump Pump, 1.5 HP 6000 GPH, Submersible Cast Iron and Stainless Steel Water Pump, 1-1/2" Discharge With 1-1/4" Adaptor, Automatic Vertical Float Switch, for Indoor Basement Water Basin - Walmart.com
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 (16 Ft Cable) - Amazon.com
1/2 HP Cast Iron Submersible Sewage Pump Sewer W/ 10ft. Piggy Back Float Switch | eBay
How Does a Sump Pump Float Switch Work? | Tameson.com