Plastic Check Valve Crystal
Check Valve x 1
Protect your air pump by preventing aquarium water from back siphoning during a power outage.
Use this Check Valve in your airline tubing between your air pump and aquarium water to prevent water returning down the air line.
Well fits standard air line tubing aquarium and CO2 tubing with inner diameter about 4 mm.
100% Made of Plastic
Dimension : 5.4cm x 1cm x 1cm