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
Guide to Using Float Switches in Water Tanks | Tameson.com
Pump Floats | Selwood
BLUELK Electric Air Pump Air Mattress Portable Pump for Inflatables Couch, Pool Floats, Blow up Pool Raft Bed Boat Toy, Quick-Fill AC Inflator Deflator with 3 Nozzles, One Size, Black - Walmart.com