Description:Made of durable clear plastic.Place in your airline tubing between your air pump and aquarium water to prevent water returning down the airline.Be attention: Please DO NOT use them with CO2 system. Specification:Product Name: Air Pump Check ValveMaterial: PlasticMain Color: Clear, BlackTotal Size: 54mm x 14mm / 2.13" x 0.55"(L*D)Fit Airline Diameter: 6mm / 0.24"Net Weight: 31gPackage Content: 10Pcs x Air Pump Check Valve.
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