Delaman 2Pcs Stainless Steel Check Valve for Anti-Backflow Non-Return Air Co2 Line 4/6mm Tubing Regulator Diffuser Plants Tank One Directional Water Flow
Product Features
- Suitable for CO2 supply system in fish tank, aquarium and others.
- The check valve can prevent the aquarium from water flowing back, which is caused by the decrease, and keep the function and service life of Carbon dioxide bottle.
- it protect the power head from the water flowing back which is caused by power cut.
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