Aquarium Accessories Fish Tank Air Pump Accessories Check Valve Anti-Backflow Anti-Siphon CO2 System Suitable for 4mm Hose
Item Aquarium Accessories
Product Fish Tank Air Pump Accessories
Material Plastic
Color Red
Function Protective Gas Pump
1.Super Easy Installation:No tools required! Just insert the valve into the air hose, follow the marked direction: Air Pump Direction → Air Stone Orientation, plug and play, perfect for beginners.
2.Transparent Visible Design:Clear housing lets you visually check the valve's working status at any time, easy to monitor and maintain.
3.Fits standard 4mm (0.16in) aquarium air hoses, compatible with most fish tank air pumps, air stones, CO2 systems, and aquarium accessories.
4.One-Way Air Flow Design:Built-in red silicone diaphragm ensures air only flows from air pump to air stone, 100% prevents aquarium water backflow into the air pump, effectively extending pump service life and avoiding equipment damage.