---
product_id: 607831241
title: "FZONE Automatic Refill with Controller for Saltwater Aquarium and Freshwater Aquarium"
brand: "fzone"
price: "€ 170.01"
currency: EUR
in_stock: true
reviews_count: 5
category: "Fzone"
url: https://www.desertcart.sk/products/607831241-fzone-automatic-refill-with-controller-for-saltwater-aquarium-and-freshwater
store_origin: SK
region: Slovakia
---

# 0.79 in compact optical sensor Real-time overfill alert 74 GPH micro whisper pump FZONE Automatic Refill with Controller for Saltwater Aquarium and Freshwater Aquarium

**Brand:** fzone
**Price:** € 170.01
**Availability:** ✅ In Stock

## Summary

> 💧 Never let evaporation steal your aquatic vibe again!

## Quick Answers

- **What is this?** FZONE Automatic Refill with Controller for Saltwater Aquarium and Freshwater Aquarium by fzone
- **How much does it cost?** € 170.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/607831241-fzone-automatic-refill-with-controller-for-saltwater-aquarium-and-freshwater)

## Best For

- fzone enthusiasts

## Why This Product

- Trusted fzone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Safety Alerts:** Overfill protection with audible and visual alarms keeps your aquarium safe 24/7.
- • **Whisper-Quiet Pumping:** 74 gallons/hour pump operates silently, preserving your tank’s serene ambiance.
- • **Universal Compatibility:** Fits rimmed, rimless, and sump tanks with up to 0.78 in glass thickness—versatility meets style.
- • **Precision Optical Sensing:** Dual sensors detect water level changes within 0.6 cm for flawless tank balance.
- • **Effortless Control Interface:** Upgraded 2.0 controller with intuitive FZ button lets you pause, resume, or initialize with ease.

## Overview

The FZONE Automatic Refill with Controller 2.0 is a compact, precision-engineered auto top-off system designed for both saltwater and freshwater aquariums. Featuring dual optical sensors, a whisper-quiet 74 GPH pump, and real-time overfill protection, it ensures stable water levels and optimal tank conditions. Its sleek controller interface and universal fit make it the ultimate hassle-free solution for busy aquarium enthusiasts who demand reliability and peace of mind.

## Description

Evaporation is every tank owner’s constant enemy. Auto top off systems are a crucial piece of any fish tank. FZONE Automatic Top-Off (ATO) systems provide convenient assurances. The products use water from a reservoir to refill tank or sump levels. This helps maintain specific gravity and salinity. In particular, this is important in reef and marine tanks. Drops in these levels increase stress on fish and can be fatal.

Review: Veramente un ottimo prodotto, la schiena ringrazia!!! - Avendo in casa diverse vasche nel periodo estivo mi trovo a dover rabboccare l'acqua evaporata, se la vasca è piccola ci si sta dietro ma quando questa è grande diventa un vero problema. Per tale scopo ho acquistato questo sistema di rabbocco automatico, l'ho testato appena arrivato simulando una evaporazione minima e devo dire che dopo che l'acqua è scesa di pochi millimetri, il sistema ha attivato la pompa per ristabilire il corretto livello, ho ripetuto diverse volte questa prova e il sensore è sempre intervenuto in modo preciso. La pompa l'ho immersa in una tanica da 20 litri essendo piccola per mia fortuna è passata dal foro del tappo, la pompa riesce a spingere l'acqua tranquillamente nella vasca nonostante sia a livello pavimento. Nella confezione c'è tutto il necessario all'installazione, non manca proprio nulla, quindi che dire il prodotto è perfetto, completo e allo stesso tempo funziona bene. Dimenticavo lo utilizzo anche per i cambi settimanali d'acqua così non porto più su le taniche e fa tutto lui in automatico e la mia schiena ringrazia.
Review: Great ATO that was easy to install - Great product with useful features. Easy to install and works very well. The low resovior water warning light is a great touch.

## Features

- Upgraded 2.0 ATO with Independent Controller: The auto top off system effectively monitors and replenishes evaporated water on a daily basis, providing a convenient and time-saving solution for both saltwater and freshwater tank fish keepers, particularly during business trips or holidays. With its upgraded 2.0 version, the ATO is equipped with an enhanced visual interface, allowing you to easily initialize, pause, or resume the device using the FZ button.
- Compact Size: the entire optical sensor unit of ATO is ONLY 0.79 inches diameter. The ATO works on rimmed, rimless tanks or sump tanks. The dual precision optical sensors, spaced 0.1 cm apart, monitor level fluctuations accurately within a 0.6 cm difference. Notice The Auto top off system suitable for tank with wave fluctuation less than 1cm
- More Safer: The Auto top off QST 2.0 provides real-time overfill protection. The ATO controller triggers a beeping sound and visual alert, halting the pump if refilling takes more than six times the calculated EFTT. It also detects sensor/controller malfunctions and empty reservoirs, ensuring maximum safety.Version 2.0 includes new technology making our ATO’s the most safe option.
- Micro Whisper Pump: The Auto top off remarkably compact pump is designed to perfectly fit tanks with a neck size larger than 1.97 inches. With a capacity of 74 gallons per hour, this water pump can lift water up to 2 meters. The AFT will measure the water level and ensure that the AutoTop Off system does not unnecessarily activate the water pump, increasing its durability and longevity.
- All accessories included: Strong magnets can support aquarium galss or Acrylic wall thickness up to 0.78 inches (20mm). Check valve prevents backflow & will not drain your main display. Tubing is 6 feet(180cm), 7mm inner diameter.
- Fzone will offer a round-the-clock service, and you can reach out to us at any time for any product-related concerns.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C68N3WK9 |
| Best Sellers Rank | #14,673 in Pet Supplies ( See Top 100 in Pet Supplies ) #774 in Aquarium Accessories |
| Brand | FZONE |
| Brand Name | FZONE |
| Color | Blue |
| Colour | Blue |
| Customer Reviews | 4.1 out of 5 stars 417 Reviews |
| Flow Rate | 1.23 Gallons Per Minute |
| Included Components | Sensor |
| Item Dimensions L x W x H | 5L x 3W x 3H millimeters |
| Item Type Name | ATO |
| Item Weight | 0.4 Kilograms |
| Manufacturer | FZONE |
| Manufacturer Part Number | ATO-580P |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Lifting Height | 6.6 Feet |
| Model Number | FZ-580P |
| Power Source | Corded Electric |
| Power source | Corded Electric |
| Product Style | Auto |
| Product dimensions | 5L x 3W x 3H millimeters |
| Specific Uses For Product | Inside |
| Style | Auto |
| Unit Count | 1.0 Count |
| Voltage | 15 Volts |

## Product Details

- **Brand:** FZONE
- **Colour:** Blue
- **Material:** Plastic
- **Product dimensions:** 5L x 3W x 3H millimeters
- **Style:** Auto

## Images

![FZONE Automatic Refill with Controller for Saltwater Aquarium and Freshwater Aquarium - Image 1](https://m.media-amazon.com/images/I/51LdVhZJ0ML.jpg)
![FZONE Automatic Refill with Controller for Saltwater Aquarium and Freshwater Aquarium - Image 2](https://m.media-amazon.com/images/I/61-alUmNoWL.jpg)
![FZONE Automatic Refill with Controller for Saltwater Aquarium and Freshwater Aquarium - Image 3](https://m.media-amazon.com/images/I/61mWx1T2hGL.jpg)
![FZONE Automatic Refill with Controller for Saltwater Aquarium and Freshwater Aquarium - Image 4](https://m.media-amazon.com/images/I/61NoiLfKB8L.jpg)
![FZONE Automatic Refill with Controller for Saltwater Aquarium and Freshwater Aquarium - Image 5](https://m.media-amazon.com/images/I/71aVOgelolL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Veramente un ottimo prodotto, la schiena ringrazia!!!
*by R***A on 25 November 2023*

Avendo in casa diverse vasche nel periodo estivo mi trovo a dover rabboccare l'acqua evaporata, se la vasca è piccola ci si sta dietro ma quando questa è grande diventa un vero problema. Per tale scopo ho acquistato questo sistema di rabbocco automatico, l'ho testato appena arrivato simulando una evaporazione minima e devo dire che dopo che l'acqua è scesa di pochi millimetri, il sistema ha attivato la pompa per ristabilire il corretto livello, ho ripetuto diverse volte questa prova e il sensore è sempre intervenuto in modo preciso. La pompa l'ho immersa in una tanica da 20 litri essendo piccola per mia fortuna è passata dal foro del tappo, la pompa riesce a spingere l'acqua tranquillamente nella vasca nonostante sia a livello pavimento. Nella confezione c'è tutto il necessario all'installazione, non manca proprio nulla, quindi che dire il prodotto è perfetto, completo e allo stesso tempo funziona bene. Dimenticavo lo utilizzo anche per i cambi settimanali d'acqua così non porto più su le taniche e fa tutto lui in automatico e la mia schiena ringrazia.

### ⭐⭐⭐⭐⭐ Great ATO that was easy to install
*by R***D on 17 January 2026*

Great product with useful features. Easy to install and works very well. The low resovior water warning light is a great touch.

### ⭐⭐ De cada 5 rellenos, sólo 2 los hace bien
*by A***O on 20 June 2025*

No funciona bien. Se suspende a cada relleno aún teniendo agua el depósito. Debes estar muy al pendiente a que no se suspenda (ponerse en rojo la luz), es lo mismo a estar rellenando en modo manual. Tendré que comprar otro que sea seguro en su funcionamiento.

## Frequently Bought Together

- FZONE ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-07-21*