|Quantity||1 piece(s) per pack|
|Color||Black + transparent|
|Specification||Specially designed Non-Return Valves will protect you air pump by preventing aquarium water from back siphoning during a power outage; Place these Air Pump Check Valves in your airline tubing between your air pump and aquarium water to prevent water returning down the air line|
|Other Features||Fit for 4/6mm tube; Diameter: 4mm; Supreme Anti-reverse effect|
|Packing List||1 x Check valve|
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