Tunze Osmolator 3, 3154 - Auto top off

Tunze Osmolator 3 3154 – The Future of ATO is Here!

Meet the next generation of auto top-off (ATO) systems—the Tunze Osmolator 3 3154, the long-awaited upgrade from the 3155. Designed for both saltwater and freshwater aquariums, this smart, reliable, and ultra-precise water level controller keeps your tank stable and hassle-free.

Precision and Safety in One Package

• Optical Sensor Accuracy – Maintains a steady water level with 0.5mm precision, resisting air bubbles, scratches, and deposits.
• Fail-Safe Thermal Sensor – An independent backup sensor automatically stops the pump in case of overfilling, preventing overflow.
• Strong Magnetic Mount – Securely attaches to glass up to 15mm (0.59") thick.

Turbelle® High Jet 5030 Dosing Pump – Built to Perform

• High-tech, ultra-quiet operation with a true 3-phase sine wave design.
• Impressive delivery height – Can pump up to 6.2m (20.34') with ease.
• Integrated dry run & blockage protection for extended lifespan.

Plug & Play Simplicity

No complicated setup—everything you need (except a reservoir) is in the box. Just install and go! Fixed parameters are based on years of industry expertise for seamless, hands-free top-offs.

Premium Accessories for Ultimate Durability

• Heavy-duty cable – Designed to withstand seawater exposure, mechanical stress, and abrasion without hardening over time.
• High-quality hose & fittings – German-made PU tubing with a corrosion-resistant, ¼-inch BSP to ø6mm push-in fitting for effortless installation.
• Compact all-in-one design – Fits neatly in cabinet sump systems or secures directly on the aquarium edge.

ATO Disclaimer – Safety First!

Auto top-off systems are a game-changer, but they require responsible use. Ensure your ATO reservoir holds only as much water as your system can handle to prevent potential overflows.

Reef Supplies and the manufacturer are not liable for any damages caused by improper use.

Get your Tunze Osmolator 3 3154 today from Reef Supplies and experience worry-free water level management!