Me CO2 Regulator Ultra incl. Solenoid Valve

Me CO2 Regulator Ultra incl. Solenoid Valve

  • CO2 pressure regulator with two gauges
  • Integrated solenoid valve
  • Bubble counter with non-return protection
  • Adjustable working pressure up to 6 bar
  • Standard W21.8 connection
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Description

The Me CO2 Regulator Ultra is a precise CO2 pressure regulator with an integrated solenoid valve and bubble counter that ensures a reliable and consistent CO2 supply for aquariums. Two pressure gauges clearly display both cylinder and working pressure. The unit is designed for use with refillable CO2 cylinders featuring a W21.8 thread and provides a stable CO2 supply to promote healthy plant growth.

The integrated solenoid valve enables automatic control of CO2 flow, for example via a timer or pH controller. The bubble counter with check valve allows visual monitoring of the dosage. The adjustable working pressure of 0–6 bar and the maximum inlet pressure of 150 bar provide high precision and safety during operation.

Manual Me CO2 Regulator Ultra - - download PDF

Features

  • CO2 pressure regulator with two gauges for cylinder and working pressure display
  • Integrated solenoid valve for automatic CO2 control
  • Bubble counter with check valve for precise dosage
  • Adjustable output pressure from 0 to 6 bar
  • Maximum inlet pressure: 150 bar
  • Standard W21.8 connector suitable for common refillable CO2 cylinders
  • Ensures a stable and efficient CO2 supply for healthy plant growth

Application

  • The bubble counter is filled with water to about two-thirds before operation.
  • The regulator is screwed onto the CO2 cylinder with a W21.8 thread while the cylinder valve is closed.
  • The CO2 hose is connected to the regulator’s outlet.
  • The solenoid valve is connected to a suitable timer or controller. It opens when powered and closes automatically in the event of a power cut.
  • After slowly opening the cylinder valve, the right pressure gauge indicates the cylinder pressure.
  • The working pressure is adjusted using the fine adjustment valve (the left gauge displays the output pressure).
  • The bubble rate is adjusted as required using the control knob (typically 1–3 bubbles per second for planted aquariums).
  • After use, the cylinder valve is closed and any remaining pressure in the system is released.

Technical Data

Me CO2 Regulator Ultra Solenoid Valve
Max. inlet pressure 150 bar
Output pressure 0 – 6 bar (adjustable)
Solenoid valve voltage Input: 100–240 V / Output: 12 V DC
Power consumption 2,5 W
Cable length 1,1 m
Connector thread W21.8 (for refillable CO2 cylinders)

Dimensions

Me CO2 Regulator Ultra
Length 85 mm
Width 75 mm
Height 105 mm

Scope of Delivery

  • 1 × CO2 pressure regulator with two gauges
  • 1 × Solenoid valve
  • 1 × Bubble counter with check valve
  • 1 × Power supply unit (Input: 100–240 V / Output: 12 V DC)
  • 1 × User manual

Product Safety

Caution – Electricity

Warnings:

  • Improper use may cause serious injury or damage. Keep out of reach of children!
  • Do not use oil- or grease-based lubricants – explosion risk when in contact with pressurised CO2!
  • Electrical connections should only be made by qualified personnel.
  • Use only with timers or controllers suitable for continuous operation.
  • Always disconnect from the power supply before cleaning or maintenance.

General Information:

  • Use only with suitable CO2 cylinders (observe the maximum inlet pressure of 150 bar).
  • Do not operate near open flames or heat sources.
  • Operate the device only in well-ventilated areas and at room temperature.
  • The solenoid valve must only be operated at the specified voltage.

Handling Instructions:

  • Mount or remove only with the cylinder valve closed.
  • Never tighten with excessive force – seals must not be damaged.

Me

Me

Me supplies high-quality aquarium supplies. The company has more than 30 years of experience in development, purchasing and logistics. This expertise is incorporated into the continuous improvement of accessories and aquarium products in order to provide reliable and durable equipment for aquariums.

Manufacturer information

Manufacturer
Name AS Aquaristik & Heimtierbedarf GmbH & Co. KG
Street Gewerbering 19
City 86931 Prittriching
State Bayern
Country Deutschland
E-mail as@as-aquaristik.de
Website www.as-aquaristik.de

General information

Item no.
166.0171.01
EAN 4043366012115
Weight 0,90 kg
Shipping weight 0,95 kg

Questions and answers about Me - CO2 Regulator Ultra incl. Solenoid Valve

You have questions about this product? Ask other customer or our support team about this product!

Hello. Is this a dual-chamber pressure reducer?
Translated from German
Daniel B.
Mar. 2026
Sven Breitenbach
Apr. 2026
Support
This product is a dual-chamber pressure reducer. So the pressure is kept constant even as the cylinder empties.
Translated from German
Helpful!
Where exactly is the position for the check valve on this system? If the system runs with an external reactor for the CO2 supply!?
Translated from German
Olaf R.
May. 2026
Sven Breitenbach
May. 2026
Support
A corresponding check valve is already built into the bubble counter. Optionally, another check valve can be installed after the bubble counter, as close to the reactor as possible. This provides additional safety, and when the system is switched back on, the CO2 is available at the reactor again faster.
Translated from German
Helpful!
Handelt es sich mit Sicherheit um einen Doppeltkammer Druckminderer Druckminderer? Laut Beschreibung finde ich dazu nichts....? Danke
No English translation available yet – original in German.
Daniel J.
Sep. 2026
Sven Breitenbach
Sep. 2026
Support
Bei dem Druckminderer handelt es sich um einen Doppelkammerdruckminderer. Der Arbeitsdruck wird bis zum Ende der Flasche konstant gehalten.
No English translation available yet – original in German.
Helpful!

Customer reviews

This item has been rated 4 out of 5 stars
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1 Star(0)
Fabian H.
Now in use twice. Recommended.
16th May

I'm totally new to the CO2 "game" and took this regulator on the advice of a forum member. Handling is super easy and was simple to set up even for a layperson like me. (read more)

Translated from German
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Mittlerweile zweimal im Einsatz. Empfehlenswert.

Ich bin total neu im CO2-"Game", hatte dann auf Anraten eines Forenmitglieds diesen Regulator genommen.

Die Handhabung ist super einfach und war auch für mich Laien einfach umzusetzen.

Im Nachgang ist das einzig nervige, dass keine Zeitschaltuhr integriert ist und man auf eine ZeitschaltSteckdose o.ä. Lösungen angewiesen ist.

Wen das nicht stört - OK - ich hab zwei Druckminderer im Einsatz mittlerweile mit Inline-Diffusoren und es läuft hervorragend.

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