Ritchie’s newly designed immersion heater now protects against corrosion and will not deteriorate. Armed with an upper end limit switch and a more accurate, built in thermostat, this heater provides a better transfer of heat at a more efficient rate.
For use in all poly units. Protects the valve chamber and troughs from freezing. The immersion heater has a built in thermostat. Plug in installation for ease in removal and replacement.
LP Stock Tank Heater, Model 66B 
Ritchie’s newly designed immersion heater now protects against corrosion and will not deteriorate. Armed with an upper end limit switch and a more accurate, built in thermostat, this heater provides a better transfer of heat at a more efficient rate.