The CoralVue HYDROS Auto Top-Off Kit Includes:HYDROS Triple Water Level Sensor (plugs into HYDROS Sense Port), HYDROS DC Micro Pump (plugs into HYDROS Drive Port), Hang-On Tubing Mount, Tubing & Siphon Break

CoralVue HYDROS Triple Optical Auto Top-Off (ATO) Kit

Why purchase a separate and expensive auto top-off system when HYDROS can do the job for you? The HYDROS Auto Top-Off Kit comes with everything you need to use your HYDROS device (like the Control X2 or Control X4) as an ATO system. This kit features a new Triple water level sensor for added security.

The HYDROS Auto Top-Off Kit Includes:

• HYDROS Triple Water Level Sensor (plugs into HYDROS Sense Port)

• HYDROS DC Micro Pump (plugs into HYDROS Drive Port)

• Hang-On Tubing Mount

• 80″ Tubing (8.5mm OD – 6.5mm ID)

• Siphon Break