New unused Gecko AEWare 4.0kW heater 0603-416001 240v 60W 17A. THIS IS A US MODEL and WONT WORK WITH UK SPAS. PLEASE DO NOT PURCHASE IF INTENDING TO REPLACE A UK 50W MODEL AS NO RETURNS ARE ACCEPTED IF WRONG. This item has never been fitted and is as new. The Gecko Aeware 4.0kW IN.THERM Hot Tub Heater is a reliable and efficient heating system specifically designed for hot tubs. Made by the reputable brand Gecko, this heater is a US model with a 60Hz power supply, ensuring compatibility with most standard hot tubs in the range. Easy installation, making it a convenient and essential addition to any outdoor leisure space. Keep your hot tub water at the perfect temperature with this high-quality and robust heater.