10 Best Aquarium Co2 Regulator of December 2025

• DUAL Big GAUGE! 1.6 inch big dual gauge easy to read your cylinder inner and working Pressure.
• UPDATED SPLIT-TYPE DC SOLENOID! Newest 12 DC split-type solenoid instead AC models, more safe and stable. NEVER noise, automatic turn on/off CO2 with timer.
• HIGH PRECISION STRUCTURE-This regulator is designed for the aquarium. High precision fine-tuning easy for co2 to be 1 bubble in 3 seconds. Upgraded sealing material avoid any leak.
• BUBBLE COUNTER AND TOOLS INCLUDED! Together with bubble counter, you can read your co2 flow rate. Bubble counter with check valve function, stop water backflow to bottle. All installing tools included, make all goes easy.
• CLASS 1 MANUFACTURING TECHNOLOGY! Made of hard aluminum alloy, surface spraying treated. Pressure knob and fine tuning knob with knurl.

FZONE

• BIG DUAL GAUGE DISPLAY, PRESSURE ADJUSTABLE - 1.6 inches upgrade the large dual meter display so that you can clearly display the working status of the carbon dioxide system and clearly read the air pressure value.Working pressure adjustable.
• SAFE AND STABLE DC - Newest 12 DC split-type solenoid instead AC models, more safe and stable. Low power consumption solenoid with low noise and temperature.
• HIGH PRECISION DETAILS - Our CO2 regulator is a super-suit regulator for the aquarium or your fish tank. High precision fine-tuning easy for co2 to be 1 bubble in 3 seconds. Bubble counter with check valve function, stop water backflow to bottle.
• STRONG COMPATIBILITY-The CO2 regulator aquarium is compatible with most brands of high-density tubing to inject your aquarium with CO2 quickly and easily. It also works well with most CO2 atomizers and diffusers and US standard CO2 tanks(CGA320 connector).
• DURABLE AND EASY TO INSTALL - Made of hard aluminum alloy, not easy to rust, Increase usage time. Package with installation instructions and product details instructions, easy to install and use, if you have any questions, please contact us directly by email.

ZRDR

• DESIGN FOR PAINTBALL TANK. Connect to paintball CO2 tank, no adapter required, no assembly required.
• 12V DC SOLENOID WITH PRECISION NEEDLE VALVE! This co2 regulator use 12V DC solenoid valve repalced AC solenoid valve, safer and more stable, lower power, no noise. Automatic turning on/off CO2 output with timer. Aquarium specific needle valve, High precision fine-tuning easy for co2 to be 1 bubble in 3 seconds.
• BUBBLE COUNTER WITH CHECK VALVE FUNCTION! Come with bubble counter, you can read your co2 flow rate directly via the bubble counter. Bubble counter with check valve function, stop water backflow to bottle.
• CLASS 1 MANUFACTURING TECHNOLOGY! The co2 regulator is made of hard aluminum alloy, surface spraying treated.
• ATTENTION: Only suite for paintball tank(Paintball tank is NOT included, for demonstration purposes only.Please fill up your paintball CO2 tank if you purchased the tank online before using the regulator. The paintball CO2 tank is shipped empty due to safety concern).

FZONE

• This aquarium CO2 regulator is built with high quality material, designed for long-lasting dependability and durability. Strong and durable material is specifically designed to deliver precision measured amounts of CO2 in pressures LP 150 PSI /HP 2000 PSI
• The CO2 aquarium regulator is compatible with most of high density tubing to inject your aquarium with CO2 quickly and easily. It also works well with most CO2 atomizers and diffusers
• The mini dual gauge display is easy to read your setting,the universal CGA320 inlet connection suits for most brands of carbon dioxide tank
• Come with a tighten tool , a hex wrench, a extra seal ring and a detailed instructions for use(not include tube and carbon dioxide tank)
• The plant metabolic rate can be increased quickly,create the best growing conditions

DoubleSun

• DUAL GAUGES - The big dual meter display can clearly display the working status of the carbon dioxide system and clearly read the inner tank pressure and working output pressure.
• SPLIT-TYPE DC SOLENOID - Newest 12V DC split-type solenoid instead 110V AC models, more safe and stable. Noise-free, low-power, low-temperature solenoid valve.
• HIGH PRECISION DETAILS - Fine tuning valve with knurling to precisely control the CO2 output, made of hard aluminum,not easy to rust.
• STRONG COMPATIBILITY - Compatible with most brands of high-density tubing，it also suitable for standard North American fits CGA 320.
• Quality Products and Services - Package with installation instructions and product details instructions, if you have any questions about the products and services, please feel free to contact us and we will do our best to help you.

DoubleSun

• DUAL STAGE CONSTRUCTION & ADJUSTABLE OUTPUT PRESSURE. Dual stage construction provides stable output pressure regardless of how much CO2 gas remains inside the CO2 cylinder, eliminating unpredictable catastrophes such as an end-of-tank-dump (EoTD). The output pressure is adjustable from 0-65 PSI based on customers’ different needs.
• MODULAR MANIFOLD BLOCK DESIGN. Two manifold blocks are included. Each block comes with its own high-precision needle valve and can be operated independently. You may use one block for one aquarium or use both for two aquariums.
• SAFETY AND PRECISION IN MIND. Our regulator has a built-in safety valve. It will open automatically to release the pressure when it exceeds 100 PSI. The integrated needle valve is precise. The CO2 output can be adjusted to as low as 1 bubble every 3 seconds.
• SOLENOID RUNS ON 12V DC INSTEAD OF CONVENTIONAL 120V AC. This regulator adapts to 12V DC, which is more stable and consumes less power. The solenoid is safe to touch and is very quiet. This solenoid is designed to work with an automatic timer.
• ATTENTION! Suitable for North American CO2 cylinder with CGA320 adapter! Installation tools are included.

FZONE

• DUAL GAUGES! Dual gauges allows for a more precise reading of inner tank pressure and working output pressure.
• UPDATED SPLIT-TYPE DC SOLENOID! Newest 12V DC split-type solenoid instead 110V AC models, more safe and stable. NEVER noise, automatic turn on/off CO2 with timer.
• HIGH PRECISION STRUCTURE! Fine tuning valve with knurling to precisely control the CO2 output. Made of hard aluminum alloy allow continuous usage without worrying about rust
• BUBBLE COUNTER AND TOOLS INCLUDED! Bubble counter with check valve and tools are included to make the process hassle free.
• ATTENTION! Suitable for standard North American fittings, CGA 320.

FZONE

• TRIPLE STAGE DECOMPRESSION, PRESSURE ADJUSTABLE! This aquarium co2 regulator is the triple stage design, very stable output pressure and CO2 flowrate, cylinder inner pressure reduced, flowrate will not change. Working pressure can be adjusted from 0-60 psi.
• 12V DC SOLENOID WITH PRECISION NEEDLE VALVE! This co2 regulator use 12V DC solenoid valve repalced AC solenoid valve, safer and more stable, lower power, no noise. Automatic turning on/off CO2 output with timer. Aquarium specific needle valve, High precision fine-tuning easy for co2 to be 1 bubble in 3 seconds.
• BUBBLE COUNTER AND TOOLS INCLUDED! Together with bubble counter, you can read your co2 flow rate directly via the bubble counter. Bubble counter with check valve function, stop water backflow to bottle. All installing tools included, easy to install and use.
• CLASS 1 MANUFACTURING TECHNOLOGY! The co2 regulator is made of hard aluminum alloy, surface spraying treated. Pressure knob and fine tuning are very easy to adjust.
• MINI SIZE FOR ALMOST ALL TANKS! The regulator compatible with Painball tank, all size CGA320 threaded cylinder and 5/8'' UNF threaded disposable co2 cartridge.(Most 80-90g cartridges are 5/8'' UNF thread. Fluval 45g threaded 3/8'', NOT suitable,)

FZONE

• BIG DUAL GAUGE DISPLAY- 1.6 inch big dual gauge display with clear tick marks and numbers allows you clearly and accurately read the pressure(0-3500 psi) in the cylinder and output pressure(0-150 psi), even it is installed in the corner.
• UPDATED SPLIT-TYPE SOLENOID-Newest split-type solenoid dual stage valve for added safety and reliability. Low power consumption solenoid with low noise and temperature. DC 12V Power. Up to 57 inches of wire, so no longer have to worry about finding a socket, the installation location can be selective.
• HIGH PRECISION STRUCTURE-This is a great regulator for the aquarium. The built in counter with check valve function on the regulator is adjustable by micro-adjustable valve according to your need. In order to avoid air leakage, each connection has a sealing ring.
• STRONG COMPATIBILITY-The CO2 aquarium regulator is compatible with most brands of high density tubing to inject your aquarium with CO2 quickly and easily. It also works well with most CO2 atomizers and diffusers and US standard CO2 tanks(CGA320 connector).
• WHAT’S IN YOUR PACKAGE?- 1 x DoubleSun big dual gauge regulator; 1 x wrench; 1 x hex wrench; 1 x extra seal ring; 1 year warranty. You can get it set perfect for a planted aquarium with our regulator.

DoubleSun

• Ø  Double Meter Structure and Adjustable Output Pressure: CO2 regulator with double meter structure can provide stable output pressure. The high pressure meter can clearly display the pressure value in the bottle (0-4000PSI); the low pressure meter shows the output gas pressure (0-160PSI)
• Ø  Multi-modular Design: including two manifold blocks. Each module has its own high-precision needle valve and can be operated independently. You can use it as an aquarium or two aquariums at the same time. You can also add more modules according to your needs.
• Ø  High-quality Materials: high-density materials, equipped with 2 large dual display meters, you can easily read the required information. The integrated needle valve is very precise. The carbon dioxide output can be adjusted to as low as 1 bubble every 3 seconds.
• Ø  Automatic Control: bubble counter: CO2 gas indicating device flow. Check valve: prevents water from flowing back to the regulator. Solenoid valve: It is necessary to control the on and off of carbon dioxide and use it with a timer to automate the supply of CO2.
• Ø  Packaging Includes: Attention! Suitable for North American CO2 cylinders with CGA320 adapter! Contains installation tools.

Vogvigo