The 'Classic' Electric Spa Heater can be installed on the base supplied or horizontally. It is supplied with 40mm barrel unions. All electrical systems are pre-wired in the heater head ready for the supply connection. A 10 amp plug socket under the heater head is standard for a pump or control system connection. The heater comes complete with power and heating indicators. Available in several ratings, the 'Classic' heater is fully approved for pool and spa use under AS3126 App. No. N14524