Plastic Base For Use With Garden Sprinklers. The Base Helps To Balance The Sprinkler For Optimal Coverage. Easy To Install With Various Sprinkler Types. Enchances Sprinkler Stability And Performance.
Intallation was straight forward once you understand what all needs to be in the initial kit (element, thermostat pocket, kwikot flange). I opted to use a seperate compatible thermostat to connect the system to my existing CBI Geyser controller. From cold it heated up in about 2.5 hours and happpily runs through my inverter on solar during the day.