XP Aqua Duetto 2 Replacement Controller XP Aqua Duetto 2 Replacement Controller is a genuine replacement controller and sensor assembly for compatible XP Aqua Duetto and Duetto 2 automatic top-off systems. It is used to service an existing ATO setup while reusing compatible pump, tubing, power, and mounting components as applicable. Duetto and Duetto 2 ATO Controller Replacement Genuine replacement part for XP Aqua Duetto and Duetto 2 ATO systems. Includes the controller and optical sensor assembly for water-level control. Helps restore ATO operation when the original controller or sensor assembly requires replacement. Power input: 100-240 VAC, 50-60 Hz. DC output: 12 VDC / 1.0 A. Maximum mounting thickness: 1/2" / 12.7 mm. Sensor size: 0.78" x 0.78" x 0.98" / 20 x 20 x 25 mm. Length of cable between sensor and controller: 6 ft / 180 cm. Not a complete ATO kit. Controller Replacement Notes Confirm the existing ATO system is compatible before installation. Disconnect power before removing the old controller or sensor assembly. Mount the replacement sensor on clean glass within the supported thickness range. Reconnect the compatible pump and power components according to the XP Aqua instructions. Avoid placing the sensor in areas with microbubbles, direct light, turbulence, or salt creep buildup. Test several top-off cycles before relying on unattended operation. What's Included XP Aqua Duetto 2 Replacement Controller
