FZONE Aquarium ATO Auto Top Off Dual Sensor Reef Freshwater Green Blue
- Regular Price
- $61.99
- Sale Price
- $61.99
- Regular Price
- $0.00
- Unit Price
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Details
Automatic Water-Level Control for Freshwater & Reef Tanks
Maintain a more consistent aquarium water level with the FZONE Auto Top-Off System. Dual optical sensors monitor evaporation and activate the included refill pump when additional water is needed.
Available Colors: Green and Blue. Select your preferred color before adding the system to your cart.
Key Benefits
- Dual Optical Sensors: Monitor high and low water levels for precise automatic refilling.
- Three-Layer Control Technology: EFTT, AFT and QST 2.0 help manage fill time, reduce unnecessary pump cycling and detect potential operating issues.
- Automatic Safety Shutoff: Stops the pump and provides a visual alert when abnormal filling, an empty reservoir or a malfunction is detected.
- Compact Installation: The slim sensor fits many rimmed, rimless, nano, medium and sump aquarium setups.
- Freshwater & Saltwater Use: Helps replace water lost through evaporation in freshwater, marine and reef aquariums.
What’s Included
ATO controller, DC refill pump, universal tube holder, water check valve, power adapter, 6.5-foot PU tubing and user manual.
Product Details
- Colors: Green or Blue
- Pump flow rate: Up to 74 GPH (approximately 270–280 LPH)
- Maximum pump lift: 6.56 feet (2 meters)
- Power: AC 100–240V input; DC 12V/1A output
- Magnetic mounting supports aquarium walls up to 0.78 inch (20 mm) thick
Important: Follow the included setup and calibration instructions carefully. Position the refill tube above the aquarium’s maximum water level and install the check valve in the correct direction to reduce backflow and siphoning risk. Regularly inspect and clean the sensors, pump and tubing. No automatic top-off system eliminates the need for routine aquarium monitoring.
Choose Green or Blue and make daily aquarium water-level maintenance easier.
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Shipping & Delivery
How long will it take to ship my order?
Your order will be shipped within 3-8 business days.
How much does it cost?
We offer free trackable shipping on select items.
Shipping rates for partner brand items and international orders may vary and will be calculated at checkout.
Where is my order shipped from?
Big Frenchies apparel is shipped in plastic-free packaging directly from our Virginia facility. Items from our partner brands may have different packaging and can be shipped from any of their fulfillment locations worldwide.
How long does shipping take?
USA: 3-8 business days
CA, AUS, UK, and Europe: 5-21 business days
Rest of world: 5-25 business days
Return Policy
As a small family-owned business, we thrive on your feedback, so it's vitally important for us to make sure you're happy with your purchase.
Our return policy is simple: You have 7 days from delivery to request a return or exchange for most products shipped within the United States.
Customers are responsible for return shipping costs unless the return is due to a defective product. Learn more about our full return policy.
Please note:
- Returns are only available for US orders. International orders are final sale.
- For health and safety reasons, personal care items (like baby creams, shampoos, balms, sunscreens, and lotions) and food products cannot be returned once opened.
- Custom and handmade items are final sale and cannot be returned or exchanged, as they are crafted specifically to order.
- A restocking fee may apply to certain eligible returns. If applicable, this will be communicated upon return authorization.
You can reach out to our customer support team by submitting your request via the "Contact Us" form or by emailing us at support@bigfrenchies.com. A member of our support staff will respond to you as soon as possible.
Need Help? Get In Touch.
We'd love to hear from you!
The best way to reach us is via email: support@bigfrenchies.com.
Have questions about sustainability, shipping, return, exchange or something similar?
Check our FAQ page.
