Designed for RO/DI Systems：Fzone solenoid Auto top off system directly link to home RO/DI systems， this ensures purified water is added to the aquarium,minimizing harmful substances
Compact Design: The ATO Sensor is only 0.7inches Suitable for rimmed, rimless and sump tank setups, providing a flexible solution for maintaining stable water levels across different aquarium types.
Dual High-Precision Optical Sensors: FZONE Auto top off system with dual optical sensors ensures precise water level control and overflow protection with primary and backup triggers.
Safety: The ATO system utilizes the QST3.0 and AFT Technology for enhanced reliability. AFT tech accurately differentiates between temporary and actual water level changes,ensuring stable performance.
Two-year warranty: The kit comes with sensors, solenoid valve, power supply,and PU tubing.Enjoy a 2-year warranty, free replacements, and dedicated support for your peace of mind.
