Ecosmart Flow Sensor Assembly for Eco 18, Eco24 Eco, 27 and Eco 36 plus it works with Eemax ProSeries, Rheem RTEX series, and more.

This item ships with a plug connector as shown in the photos above. If you have an older style unit that connects with bare wire or terminals, then you should strip the wires on this part and connect in the following order from top to bottom: BLACK, WHITE, RED. If your unit is a newer model and doesnt resemble this photo, please click here! 

This is a genuine OEM Ecosmart product.

Also 100% compatible with the following heater models:
≈ iHeat/Drakken AHS27D, AHS18D, AH27, AH18
≈ Eemax ProSeries PR018240, PR027240, PR036240
≈ Eemax EEM24018, EEM24027, EEM24036 (blue color units)
≈ Rheem RTEX-18, RTEX-27, RTEX-36
≈ Rheem RETEX-18, RETEX-27, RETEX-36
≈ Richmond RMTEX-18, RMTEX-27, RMTEX-36