Osmolator 3 ATO
Y7000
Straightforward and safe water level controller for fresh and sea water with optical control sensor and independent thermal safety sensor. A constant water level keeps the salt concentration constant in...
Or build it into a bundle — save up to 6% ↓What it is, and who it is for.
Straightforward and safe water level controller for fresh and sea water with optical control sensor and independent thermal safety sensor. A constant water level keeps the salt concentration constant in seawater aquariums. Incl. Turbelle® High Jet 5030 dosing pump with integrated dry running and blockage protection, magnet holder, 12V DC power supply unit, tube and tube holder. Suitable for placement in cabinet filter systems or on the edge of the aquarium. The sensor holds on glass panes up to 15 mm (0.59”) and the tube holder up to 22 mm (0.87”).
The large, precise optical sensor
Detects the water level with an accuracy of 0.5 mm, resists air bubbles, deposits and scratches. The independent thermal safety sensor stops the Turbelle® High Jet 5030 pump in the event of overfilling, ensuring 100% overflow protection.
High-tech cable especially for demanding aquaristics
With remarkably high abrasion resistance, seawater resistance and extreme resistance to mechanical impact. As a result, it does not harden in water like PVC cables. With an extra high-contrast intermediate cable sheathing to detect damage at an early stage. Produced in Bavaria by MEDI Kabel.
Plug & Play
All required components are ready for installation in the package (except reservoir). No software setup required. The fixed parameters are based on many years of experience.
Includes hose and hose connector
The set includes a corrosion-resistant, screw-in push-in fitting (¼ inch BSP to ø6 mm). In addition, a PU hose made entirely in Germany - low-emission, hydrolysis-resistant, microbe-resistant, flexible, but does not tend to kink when laid.
Includes Turbelle® High Jet 5030
Long-lasting high-tech dosing pump Turbelle® High Jet 5030 with a maximum delivery height of 6.2 m (20.34') and pleasantly quiet operation thanks to a real 3-phase sine wave.
Compact all-in-one construction
With magnet holder and tube holder for an attachment to any aquarium edge or in the aquarium filter up to 15 mm (2/3").
Build around the Osmolator 3 ATO.
It's already in your system below. Add the flow, filtration and dosing around it and the discount starts working — tiers climb as the build grows, and the reef meter fills with it.
Pick the right one, not the biggest one
The honest line-up from ato & ro/di. Most buyers reading this page should buy the middle column.
RO/DI
Osmolator 3 ATO
SpectraPure MaxCap RO/DI System with BoosterAsked before checkout
The questions our support inbox actually gets.
Does it ship quickly?+
Orders placed before 2 PM ET on a business day leave the same day. Tracking is emailed the moment the label prints.
What if it's the wrong fit for my tank?+
Return it. 30 days, no restocking fee, refund to the original payment method. Better: tell us your tank first and we'll spec the system for free — half of all returns are sizing problems.
Who handles the warranty?+
We do. Everything carries the manufacturer's warranty and we run the claim for you — one email to us instead of a ticket queue.
How does the bundle discount work?+
Add items in the bundle builder: 2+ items saves 5%, 3+ saves 8%, 4+ saves 12%, and 5+ saves 15% off the whole system, applied at checkout.