Replacement Motor for any Legacy View control valve, including:

WaterSoft Isobar II and Isobar III

CSI Signature 2 and Signature 3

Clearion 300 Series

If you have an older unit with a motor that has a green circuit board on the back, you will need to get a replacement board & motor kit to upgrade to the new style.  If your control valve is Legacy View Bluetooth enabled, though, then this is the correct motor.