Aquarium One Way Check for for Oxygen Line Tube Fish for Acc
Features: Efficient, effective for protection for your pump
Great one way check for for aquarium
Return anti siphon valves to protect your electrical equipment. (air pumps etc)
for standard aquarium air of 4mm inner diameter
Small and compact,easy to install

Specifications:
Length: app.4cm/1.57''
Main Color:

Package Includes: 1 x One Way Check for

note: 1.Please allow 0-1cm 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!