Auto Top Off with Solenoid for RO/DI System


  • Designed for RO/DI Systems: Fzone ATO links directly to RO/DI systems for purified water addition, reducing harmful substances.
  • Compact Design: Sensor is 0.7 inches, suitable for rimmed, rimless, and sump tanks.
  • Dual High-Precision Sensors: Ensures precise water level control and overflow protection with primary and backup triggers.
  • Safety: Uses QST3.0 and AFT Technology for reliable, stable performance, differentiating between temporary and actual level changes.
$43.99
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

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.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 2.

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.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

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

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

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.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 2.

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.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

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