For Sundance Spas Model: Compatible with 09\/2020+ 680 Series, 03\/2020+ 780 Series, 04\/2017+ 780 Dover, 10\/2016+ 980 Claremont\/Kingston, 2016+ 880 Series. 09\/2020+ 680 Alicia, 09 \/2020-12\/2020 680 Prado5 and Tacoma, 03\/202003\/2021 780 Hanover, 2019-03\/2021 980 Lisbon\/Odessa, 03\/2018-03\/2021 880 Cambria, 2011-2018 Select Series, 2013-703\/2 780 Montclair, 2008-03\/2017 780 Series, 2008+ 780 Series, 2008-2012 680 Burlington Models Equipped with a circulation pump For Sweetwater \u0026 Jacuzzi Spas Models: Compatible with All 2003-2004 Sweetwater Models, and Jacuzzi 2015+ J-500 Series, 09\/2015+ J-400 Series, 2016+ J-300 Convertible Models, 02\/2020+ J-300 Models , 10\/2020+ J-200\/J-100 Models, 2002-2003 J-320, J-330, and J-340 Models, 2004+ J-335, J-345, 2007+ J-355, J-365 , J-375 Models, 2007+ J-230, J-270, and J-280 Models with the Circulation Pump Option, 2002-2015, J-300 LED Series (With Curled Finger Connectors), 2011+ JLX, JLXL models Spa Flow Switch Replacement Kit: This complete flow switch replacement kit is made of a high-impact surgical plastic housing, clear plastic for easy viewing of any debris in the switch. A defective flow Sensor will cause a \