Nikou Check Valve, 2Pcs Stainless Steel One Way Air Valve for Anti-Backflow Non-Return Air CO2 Line Tubing Regulator Diffuser in Aquarium System Fish Tank Accessories
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- Application Stainless Steel One Way Check Valves are suitable for CO2 supply system in fish tank, aquarium and air pump system
- Easy Operation Single check valve is easy to install, requires no additional tools and can be attached to any place you like in seconds
- Function Well Aquarium non return check valve can protect the power head from the water flowing back which is caused by power cut
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