Oxyturbo CO₂ Set Basic Double Stage

The CO₂ Set Basic Double Chamber is a reliable solution for CO₂ supply in entry-level aquariums. It includes an Oxyturbo Double-Chamber Pressure Regulator, a CO₂ high-pressure hose (PUR, crystal clear, 3 m), an Orb Checker Nano, the CO₂ indicator solution CO₂ Check (20 mg/l, 250 ml), a bubble counter, a solenoid valve, and a Neo CO₂ Diffuser Original (Mini, Medium, or Large). This set combines the simplicity of the Basic Set with the added stability of a double-chamber pressure regulator, ensuring even CO₂ distribution and minimising pressure fluctuations, all while maintaining an attractive price-performance ratio.

The high-quality Oxyturbo Double Chamber Pressure Regulator is used to reduce the pressure of approx. 54 bar within the gas cylinder to a working pressure of approx. 1 to 3 bar (maximum working pressure 3 bar). By combining the working pressure manometer and the cylinder pressure manometer you can regulate the CO₂ supply very precisely and you know at once when it is time to refill the cylinder. The integrated fine needle valve allows a very precise regulation of the CO₂ supply for the aquarium. Thanks to the double chamber system, the working pressure remains constant until the cylinder is completely empty.
When pressure regulators without a double chamber system are used the working pressure may rise relatively fast and abruptly as soon as the gas filling inside the bottle goes below around 20 % of the nominal filling quantity. If you do not re-adjust manually in such a case, the amount of CO₂ supplied to the tank will increase significantly and surmount the dosage that was originally set. If you do not want to take on this task, the remaining 20 % of CO₂ would need constant adjustements of the working pressure. With this double-chamber pressure regulator, on the other hand, the cylinder can be emptied almost entirely without the need to adjust the working pressure for the last 20 % of CO₂, which is of advantage especially when you use large CO₂ cylinders. In a 10 kg cylinder, e.g., around 2 kg of CO₂ would need constant adjustments regarding the working pressure.

The CO₂ high-pressure hose made of polyurethane is food-safe, absolutely crystal clear and without labeling. While PUR hoses are durable, they are not ideal for connecting to glassware. To ensure secure connections, the hose should be softened in very hot water before attaching it to fittings. Similarly, reheating the hose with hot water or a lighter before removing it from glassware reduces the risk of glass breakage.

The Aquasabi Bubble Counter is a valuable tool for monitoring CO₂ levels in aquariums. By counting bubbles over a set period, it allows for a rough estimation of CO₂ being supplied. The Bubble Counter has an integrated non-return valve whose main purpose is to prevent the backflow of aquarium water through the bubble counter into the technical system, such as the pressure reducer, especially when the supply pressure drops.
Using the bubble counter is simple and straightforward. The bubble counter is inserted into the system for optimized control of the amount of CO₂ supplied. The screw thread on the underside of the bubble counter is precisely manufactured to ensure a reliable connection with other components.

The CO₂ Drop Checker (Orb Checker Nano) allows for optimal monitoring of CO₂ levels in aquarium water. The Aqua Rebell CO₂ indicator solution included in the set changes colour based on the CO₂ concentration. Green indicates an ideal CO₂ level of 20 mg/l, blue signifies low CO₂, and yellow warns of excessive CO₂ concentrations.

The Bavaria Fluid Systems Solenoid Valve BMV61212 is a premium-quality 2/2-way coaxial solenoid valve manufactured in Germany, specifically designed as a night shut-off for CO₂ systems in aquariums. By halting CO₂ supply during the night when plants are not consuming it, the valve prevents CO₂ buildup and safeguards aquarium inhabitants. The normally closed valve has a low power consumption of just 1,6 W and operates reliably with a supply voltage of 230 V AC. Its robust construction, featuring stainless steel and nickel-plated brass, ensures durability, while its IP65 protection rating guards against dust and water. The valve’s connectors are compatible with standard 4/6 mm hoses.

The AQUARIO NEO CO₂ Diffuser Original is a compact acrylic CO₂ diffuser that efficiently atomises CO₂ through a specialised ceramic membrane, ensuring it dissolves effectively in water. It might be helpful to soak the diffuser in water for about 10 minutes before initial use to displace any trapped air. This could be particularly beneficial during the first 24 hours after installation to minimize the formation of larger bubbles at the bottom edge of the ceramic membrane. Alternatively, one could simply wait after connecting it to the CO₂ system, as the CO₂ will eventually displace the remaining air on its own.

• The pressure regulator is designed for returnable cylinders
• Thread: W21,8 x 14G
• The thread is made according to UK, Europe, Japan and Taiwan standard (BS341 / DIN477 / W21,8)
• With German/English/Italian instructions of use
• 3 m high-pressure hose for flexible installation
• Pressure-resistant hose up to 11 bar
• Bending radius of 20 mm
• Aquasabi Bubble Counter with integrated check valve
• Aquario Neo CO₂ Diffuser in sizes to suit aquarium capacity
• Orb Checker for convenient CO₂ monitoring
• CO₂ indicator solution with a 20 mg/l colour change
• Solenoid valve with 1,5 m cable and plug

• 1x Oxyturbo Double Chamber Pressure Regulator
• 1x CO₂ high-pressure hose (PUR, crystal clear, 3 m)
• 1x Orb Checker - Nano
• 1x CO₂ Check - 20 mg/l (250 ml)
• 1x Bubble counter
• 1x Solenoid valve
• 1x Neo CO₂ Diffuser - Original (Mini, Medium, or Large)