Place in your airline tubing between your air pump and aquarium water to prevent water returning down the airline.
Made of durable clear plastic. Package Weight: 0.89 oz / 25 g
Great one way check valve for aquarium and fish tank.
Protect you air pump by preventing aquarium water from back siphoning during a power outage.
Made of durable clear plastic. Net weight: 0.14 oz / 4 g. Please use a paperclip to poke it from Input side to Output side when the outlet inside gets stuck.
Air Hole Diameter: 0.15″ / 4mm; Overall Size: 2.1″ x 0.58″ / 5.3 x 1.5 cm (L*Max.D)
Package Content: 6 Pcs x Air Check Valve