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Wyin Aqua Dual Stage CO2 Modular Regulator

Dual-stage modular CO2 regulator with solenoid and bubble counter, for W21.8 cylinders.

Regular price $279.99
Tax included Shipping calculated at checkout.

Usually arrives in 2–5 business days

Delivery details

  • Dispatched within 1 business day
  • Proudly Kiwi since 2017
  • Expert advice

Ships to New Zealand

  • Free shipping on orders over $150. Not included: rural addresses and bulky items such as aquariums.
  • Under $150, courier is $6.80 to $9.90 depending on region, or $11.50 to $14.90 for rural addresses. The exact cost shows at checkout.
  • Rural and South Island addresses can take a little longer.
  • Damaged or faulty on arrival? Tell us within 7 days for a replacement or refund.

Full delivery details

Pickup available at Aquascape Shop

Usually ready in 24 hours

Dual StageStages
ElectromagneticSolenoid
W21.8Thread
Anodized AluminiumMaterial

Description

The Wyin Aqua Dual Stage CO2 Modular Regulator gives your planted tank a steady, adjustable supply of CO2 from a standard W21.8 cylinder. Two regulation stages keep the working pressure even as the cylinder empties, so your bubble rate holds and you avoid the end-of-tank dump that can harm livestock when a cylinder runs low.

Both gauges sit on top: one shows how much is left in the cylinder, the other shows working pressure. The precision needle valve sets your bubble rate, and the bubble counter has a check valve built in to stop water running back towards the regulator. Your 4/6mm CO2 tubing pushes straight into the quick-plug outlet.

CO2 is switched by a 12V electromagnetic solenoid, powered by the included NZ/AU adapter. To run CO2 on the same schedule as your lights, plug the adapter into a plug-in timer.

The output block is modular. Add Wyin Aqua Extension Manifold Blocks (sold separately) to run CO2 to more than one tank, or to several injection points in one tank, from a single cylinder.

Benefits

  • Dual-stage regulation for steady output as the cylinder empties
  • Cylinder and working pressure gauges
  • Precision needle valve for fine bubble-rate control
  • Bubble counter with integrated check valve
  • Quick-plug outlet for 4/6mm CO2 tubing
  • 12V electromagnetic solenoid with NZ/AU power adapter
  • Modular block that expands with extension manifolds (sold separately)
  • Aluminium and brass construction
  • Fits W21.8 threaded CO2 cylinders

What's included

  • Wyin Aqua dual-stage CO2 regulator with electromagnetic solenoid
  • Bubble counter with integrated check valve (1 outlet)
  • 12V power adapter, NZ/AU plug

Please note

CO2 cylinder not included. Some photos show the regulator fitted to a cylinder, and one shows it with an Extension Manifold Block added; both are sold separately. There is no built-in timer, so use a plug-in timer to switch the solenoid with your lights.

Specifications

  • Stage Type
    Dual Stage
  • Cylinder Thread
    W21.8 x 14 (DIN477 / BS341)
  • Number of Gauges
    Dual (Cylinder + Working)
  • Solenoid Included
    Yes
  • Solenoid Type
    Electromagnetic
  • Needle Valve Grade
    Precision
  • Bubble Counter
    Included
  • Check Valve
    Yes
  • Digital Timer
    No
  • Manifold Compatible
    Yes (expandable)
  • Outlets Included
    1
  • Connection Type
    Quick-Plug
  • Outlet Barb Size
    4/6mm
  • Body Material
    Anodized Aluminium
  • Power Input
    12V DC
  • Plug Type
    NZ/AU
  • Warranty
    1 Year
  • 5 stars: 1 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anonymous (New Zealand)
Works great, good price

Works great, good price. The smart controller is a bit fiddly to set up but works fine.