For Sundance Spas Models: Compatible with 680 Series (09/2020 and later), 780 Series (03/2020 and later), 780 Dover (04/2017 and later), 980 Claremont/Kingston (10/2016 and later), 880 Series (2016 and later), 680 Alicia (09/2020 and later), 680 Prado5 and Tacoma (09/2020–12/2020), 780 Hanover (03/2020–03/2021), 980 Lisbon/Odessa (2019–03/2021), 880 Cambria (03/2018–03/2021), Select Series (2011–2018), 780 Montclair (2013–07/2003), 780 Series (2008–03/2017 and 2008 and later), 680 Burlington (2008–2012) — models equipped with a circulation pump. For Sweetwater & Jacuzzi Spas Models: Compatible with all Sweetwater models (2003–2004), Jacuzzi J-500 Series (2015 and later), J-400 Series (09/2015 and later), J-300 Convertible models (2016 and later), J-300 models (02/2020 and later), J-200/J-100 models (10/2020 and later), J-320/J-330/J-340 models (2002–2003), J-335/J-345 models (2004 and later), J-355/J-365/J-375 models (2007 and later), J-230/J-270/J-280 models (2007 and later) with circulation pump option, J-300 LED Series (2002–2015) with curled finger connectors, JLX and JLXL models (2011 and later). Spa Flow Switch Replacement Kit: This complete flow switch replacement kit features a high-impact surgical-grade plastic housing and clear plastic for easy visual inspection of debris. A defective flow sensor may cause a “Flashing Flo” or “Solid Flo” indicator on the control panel. A “Solid Flo” error indicates it is time to replace the flow switch. Helps prevent issues related to clogged or defective circulation pumps or dirty spa filters. Plug & Play Installation: Installation takes only a few minutes. Simply unscrew the old flow switch and install the new one, ensuring correct flow direction during installation. Color: Blue + Black Material: Plastic Package Contents: 1 x Flow Switch Part Kit Note: Color appearance may vary slightly due to lighting conditions and display settings. Measurement tolerance: ±1–3 cm.