Protect we air pump by preventing aquarium water from back siphoning throughout a force outage. Place inside the airline tubing between the air pump plus aquarium water to avoid water returning down the air line.
- Product name : air check valve; employ for : aquarium, fish tank
- Color: black, clear;material: plastic
- Hole Outer Diameter: 4. 5mm/ 0. 177″;Overall Size: 42 x 10mm/ 1. 65″ x 0. 39″ (L*Max. D)
- Weight : 4g
- Package contents : 1 × air check valve
List Price: $ 5.77 Price: $ 1.43