Flow Switch W/ Clear Tee Fitting (2560-040)A flow switch with a clear tee fitting and box end connecter. Jacuzzi Series J LX & J LXL (2011+) Jacuzzi 500 Series (2015+) Jacuzzi 400 Series (09 2015+) Jacuzzi 300 series (2 2020+) Jacuzzi Convertible Models (2016+) Sundance 680 Series (09 2020+) Sundance 780 Series (2008 03 2017 & 03 2020+) Sundance 780 Dover Model (04 2017+) Sundance 780 Montclair Model (2013 03 2017) Sundance 880 Series (2016+) *Exception* Sundance 880 Cambria Model (03 2018+)