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
Dimensions: 1.85 in x 0.59 in x 0.59 in (4.7 cm x 1.5 cm x 1.5 cm) Weight: 0.18 oz (5 g)
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