Usage Tips: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 & 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 "Flashing Flo" or "Solid Flo " on the Control Panel Icon, It is time to replace your old flow switch if you get a "Solid Flo" error. Save you from a clogged or defective circulation pump, or dirty spa filter. Plug & Play: When comes to installing this flow switch, it only takes a few minutes to finish. Simply unscrew the old flow switch and screw in the one while paying attention to the flow direction of the switch when installed. Colour:Blue+Black Material:Plastic Package Contents: 1x Flow Switch Part Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.