Week Aqua CO₂ Check Valve 4/6 mm

The Week Aqua CO₂ Check Valve is an essential accessory for carbon dioxide injection systems in planted aquariums. It is designed to prevent aquarium water from flowing back through the tubing and reaching the CO₂ regulator, helping to protect the system components from water backflow.

Compatible with 4/6 mm CO₂ tubing, it features a compact and discreet design that is easy to integrate into your CO₂ setup.

Features:

• Check valve for CO₂ systems;
• Prevents water backflow into the tubing and equipment;
• Compatible with 4/6 mm CO₂ tubing;
• Compact and discreet design;
• Easy to install;
• Ideal for planted aquariums and CO₂ injection systems.