10 Pieces Check for for Fish for Plastic Valves for 4mm ID T
Features: One way

Efficient, Effective for protection for your pump
Great one way check for for aquarium
Return anti syphon valves to protect your electrical equipment. (air pumps etc)

Specifications: Colour: Dark Blue
Material: Plastic
Length: about 3.5cm/1.38"
Quantity:1Set(10pcs)

Package Includes: 10 Pieces Check Valves for Aquarium

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!