Product Description Replacement 4 KW spa heater element. This element is equipped with centered terminals (bowtie configuration). This can be commonly found in select Gecko and Spa Builders spa heaters. Quick Specs kW: 4 kW (4,000 Watts) Voltage: 230V Length: 9 1/2" Material: Incoloy Hardware: Included Position: Centered Terminals Important Information If your GFCI is frequently tripping, this is a common sign of a heating element failure. Alternatively, if your heater is struggling or not operating at all - this likely points to a failed heating element.