Connection 3/4 Barbed Fittings, Voltage 240V, Wattage 5.5Kw. Fits for 1995+ 650 – 850 & 880 series with low flow heaters. For Jacuzzi J-400 & J-500 spas 2015+. Use silicone sealant to secure sensor in sensor well. Best choice of motor parts. Sundance Spas Heater 5.5kW 60Hz Smart Heater (SD6500-310). We sincerely provide customers with high-quality assurance services. We will provide customers with sincere after-sales services, solve problems for you in time, and protect your rights and interests. AK, GU, HI, PR, VI. 43436, 43438, 43446, 43456, 49757, 49782, 90704, 98222, 98243, 98. Please make sure your.