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2024 DIY Aquarium CO2 Regulator Electromagnetic Valve Bubble Counter CO2 Control System Fish Tank CO2 Pressure Reducing Valve

2024 DIY Aquarium CO2 Regulator Electromagnetic Valve Bubble Counter CO2 Control System Fish Tank CO2 Pressure Reducing Valve

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Specifications

Brand Name
ZRDR
Origin
Mainland China
High-concerned chemical
None
Power (W)
ac100-240v
Is Smart Device
No
Name:
Fish Tank CO2 Pressure Reducing Valve
Material: A
Aluminum alloy
Battery Included
No
Choice
yes

Product Description

ZRDR specializes in producing CO2 production equipment

Attention:

Suitable for side cylinder nut docking:

R104-A: Model/threaded interface: W21.8 G5-8 CGA320 M22 G3/4

Suitable for upward facing cylinder nut docking:

R104-B: Model/threaded interface: W21.8 G5-8 CGA320 M22 G3/4 TR21 5/8UNF 3/8UNF

Note: (Purchase the corresponding nut model to avoid nut docking problems)

The threaded connection must be confirmed before ordering.

You can view the detailed product description (model and purpose)

Material: aluminum alloy+304 stainless steel

Size: As shown in the figure

Power supply: AC100-240V input DC12V output (global version)

Suitable for AC110V-AC220V power supply

Directly used in countries/regions using 110v or 220V power supplies

Plug: EU/US/UK/AU plug


Since this is a manual measurement, please consider 1-2cm and make sure you don't mind before ordering

Reminder: After the first installation, first turn on the power supply (let the solenoid valve work first), and then turn on the air pressure of the cylinder valve!

If you have any questions, please contact us)


Pros & Cons

Pros

  • Aluminum alloy build for corrosion resistance in aquariums
  • Multiple cylinder nut compatibilities (R104-A/B models)
  • Electromagnetic valve with bubble counter for accurate CO2 dosing
  • Wide AC100-240V power compatibility

Cons

  • DIY assembly required, not plug-and-play
  • Specific threading may not fit all CO2 cylinders
  • No battery, AC power only
  • Not smart device, manual adjustments needed

Common Questions

What material is the DIY Aquarium CO2 Regulator made from?

Aluminum alloy material for the pressure reducing valve.

What size and compatibility for fish tank CO2 system?

Multiple threaded interfaces: W21.8, G5-8, CGA320, M22, G3/4, etc.; suitable for side or upward cylinder nuts.

Voltage and power for electromagnetic valve?

AC100-240V power; includes bubble counter for CO2 control.

How to use for aquarium fish tank CO2 regulation?

DIY setup with electromagnetic valve for precise pressure reduction and flow control.

Shipping details from Mainland China?

Origin Mainland China; specialized equipment ships with care instructions.

Product information last updated on November 27, 2025