RWB822 12 volt 500 GPH 2.1 amp. Rule Model 500B
- Featuring state-of-the-art water sensing technology
- Pump turns on when water levels rises and shuts off when water is removed
- No float switch required
- Anti-fouling impeller
- SubmersibleIgnition protected
- Included back flow preventer
Available in 12 volts only. 3-year limited warranty.