Designed to replace part numbers 2560-040 and Q12DS-C2, this flow switch is compatible with Sweetwater and hot tubs. Compatible with: - 09/2020+ 680 Series - 03/2020+ 780 Series - 04/2017+ 780 Series - 10/2016+ 980 Series - 2016+ 880 Series - 2013–03/2017 780 Montclair - 2011+ Series: Constance, Victoria - 2008–03/2017 780 Series: Camden, Chelsee - 2007–2012 680 Series and Hawthorne Models - 2007+ Chelsee, Camden - 2005–2006 780 Series, Bahia Also compatible with: - 2015+ J-500 Series - 09/2015+ J-400 Series - 2016+ J-300 Convertible - 02/2020+ J-300 Models - 10/2020+ J-200/J-100 - 2002–2003 J-320, J-330, J-340 - 2004+ J-335, J-345 - 2007+ J-355, J-365, J-375 - 2007+ J-230, J-270, J-280 (with Circulation Pump Option) - 2002–2015 J-300 LED Series (with Curled Finger Connectors) - 2011+ JLX - Sweetwater 2003–2004 Models: Bahia Technical Information: Replaces part numbers 2560-040 and Q12DS-C2. The 2560-040 flow switch features a molded 3/32-inch hole opening. Prior to February 2008, a 3/32-inch hole was required for installation on all 2002–2008 two- and three-pump models. Built to Last: - High-impact plastic housing - Brass wire with insulated rubber cable - Good conductivity, fast response, low hysteresis, high precision, heat resistance, waterproof, wear-resistant - 0.85-inch hose connections and 0.4-inch freeze line connection - Clear plastic housing for easy debris inspection - Directional labels for simple installation - Displays error codes FLO2 and flashing alerts Warm Tip: Cable features Curled Finger Connectors. Do not use on models such as 800, 850, or other 800 Series units that require square finger connectors. Color: As shown Material: Plastic Package Contents: - 1 x 2560-040 Flow Switch Note: Light reflection and display differences may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.