Wyin Aqua Dual Stage Smart CO₂ Modular Regulator

The a precision-engineered system designed for safe, stable, and flexible CO₂ injection in planted aquariums. Unlike single-stage regulators, its dual-stage design ensures consistent output pressure—even as your CO₂ cylinder runs low—reducing the risk of end-of-tank dumps that can harm livestock.

This regulator features a durable aluminium and brass construction and comes equipped with dual pressure gauges for monitoring both cylinder and working pressure. A quick-plug bubble counter makes connecting 4/6mm CO₂ tubing easy, and a precision needle valve allows for fine control of CO₂ flow. It also includes a 12V DC solenoid valve controlled by the included digital timer , letting you automate your CO₂ schedule to match your lighting cycle.

Designed with expandability in mind, the modular output block supports additional manifolds (sold separately). This makes it ideal for hobbyists running multiple aquariums or a single tank with multiple CO₂ injection points—all from one cylinder.

Whether you're running a single display tank or managing a growing setup, this regulator gives you the reliability and flexibility needed to maintain healthy, thriving aquatic plants. Key Features:

- True dual-stage design for consistent and safe CO₂ regulation
- Quick-plug bubble counter for hassle-free tubing connection
- Integrated 12V DC solenoid valve with programmable digital timer
- Dual pressure gauges for monitoring cylinder and working pressure
- Precision needle valve for accurate bubble rate adjustment
- Modular manifold system allows for multi-tank CO₂ injection (additional manifolds sold separately)
- Durable aluminium and brass construction
- Compatible with standard W21.8 threaded pressurised CO₂ cylinders What’s Included:

Wyin Aqua dual-stage CO₂ regulator with solenoid

Quick-plug bubble counter (1 output)

Programmable digital timer controller

AU/NZ compatible power adapter

Note: If you wish to inject CO₂ into more than one aquarium, additional extension manifolds must be purchased separately.