Sundance® Spas 6560-860 Flow Switch Overview A replacement flow switch used across multiple hot tub models. The connection endings are 'box end', as shown in the close-up picture. What's in the Box 1 x Sundance® Spas 6560-860 Flow Switch Features Two 3/4" barbed connections Box end connections 3/8" side barb Attached wire harness Flow switch threaded into the transparent tee. Compatibility Sundance Series / Model Approx. application 850 / 880 Maxxus 06/1999–2015 850 / 880 Optima 06/1999–2015 850 / 880 Cameo 06/1999–2015 850 / 880 Altamar 06/1999–2015 850 / 880 Marin Applicable 850/880 years through 2015 880 Majesta Applicable model years through 2015 880 Aspen 2012–2015 850 / 880 Capri 2001–2015, including the 1-pump configuration Brand Sundance® Spas