uxcell Fish Tank Aquarium Red Clear Plastic Air Pump Check Valves 5 Pcs

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 Air Hole Diameter : 3mm/ 0.12″;Overall Size : 5.3 x 1.5cm/ 2.1″ x 0.58″(L*Max.D)