100% brand new and high quality
Features:
Efficient, effective protection for your pump
Great one way check valve for aquarium air pump.
Non Return anti siphon valves to protect your electrical equipment. (air pumps etc)
Compatible with standard aquarium air pipe of 4mm inner diameter
Small and compact,easy to install

Specification:
Material: Plastic
Length: app.4cm/1.57''
Main Color: Red
Quantity: 1Pc
Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.
2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package includes:
1 x One Way Check Valve (without retail package)