Jardin Plastic Air Pump 10-Piece Check Valves for Fish Tank, Blue

Description

Protect you air pump by preventing aquarium water from back siphoning during a power outage. Place in your airline tubing between your air pump and aquarium water to prevent water returning down the air line. Product Name : Check Valve;Use for : Fish Tank, Aquarium Connector Dia : 5.5mm/ 0.22″;Overall Size : 35 x 18mm/ 1.4″ x 0.72″(L*Max.D)