Stainless Steel CO2 Check Valve

Stainless Steel CO₂ Check Valve

This compact stainless steel CO₂ check valve is designed to prevent backflow in pressurized aquarium CO₂ systems, protecting regulators, solenoids, and other upstream equipment from moisture intrusion. The internal spring-loaded mechanism allows reliable one-way flow under CO₂ pressure while maintaining a secure seal when pressure drops.

This valve is intended specifically for pressurized CO₂ applications and is not suitable for low-pressure air pump systems.

Important Note
Not recommended for air pump use. The internal spring pressure may be too strong for standard air pumps and air stones.

Key Features

• Stainless steel construction for corrosion resistance and long service life
• One-way flow design to prevent backflow into regulators and solenoids
• Compatible with standard 4/6 mm aquarium CO₂ tubing
• Inline installation with clearly marked flow direction arrow
• Designed for pressurized CO₂ systems only

Specifications

• Material: 304 stainless steel
• Tubing compatibility: 4/6 mm tubing
• Valve type: Spring-loaded one-way
• Application: Pressurized aquarium CO₂ systems
• Not suitable for air pumps or low-pressure air systems