Editorial Review Hot Tub Replacement PartsElectrical Flow Switch 3/4" Barbed Curled Finger Connectors 2-Pin Plug 2560-0403 Barbed with Curled Finger Connectors and 2-Pin PlugAdditional Details:-Flow switch with clear tee fitting-Do not use on other models such as 800850 800 Series that use a square finger connection!-Part number on Flow Switch:Q12DS-C2Used On the Following Sundance Spa Models:-780 Series 2008+-680 Burlington (Equipped with Circ Pump) 2008+-680 Hartford and Hawthorne (Equipped with Circ Pump) 2007+-Hamilton Chelsee Certa and Camden 2007-780 Palermo Bahia and Cayman 2005-2006-All Sweetwater Models 2003-2004Used On the Following Jacuzzi Spa Models:-J-300 LED Series (With Curled Finger Connectors)