Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! - Flow Switch---Includes 1x - Pool Flow Sensor Assembly Kit. The kit includes a flow switch, cable. - Flow Switch monitors the flow of water through the system to that the system produces chlorine gas after the water has flowed through the pool. Failure to properly install a flow switch can result in the gas chlorine building up in the pool plumbing system. Premium Material and Excellent Performance---- flow switch is made of newly material, which is not easy to break and wear out, and has a long service life. The flow sensor is sturdy and , and effectively monitors the water flow rate of your pool system to that chlorine does not build up, thus protecting the pool and equipment from any damage . Widely Compatibility---Pool Flow Switch - is compatible for all the salt chlorine generator systems for . Replacement flow switch for use on the following chlorinators: Aqua Electronic Chlorine Generators (all models) Naturesoft Water Purification System (all models) Mineral Springs (all models) Aqua Trol Above Ground Pool Automation (all - models) SplashCLEAR (all models except -RJ versions). It's designed to fit for models --RP, --RP2, --RP3, --RP4, --, Q-12DS-C2, OPT-F/S Color: As Shown Material: plastic Package Contents: 1 x Flow Switch Assembly for with cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.