Description 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 NoteNot 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
