Product Description
Caliber of matched water hose: 4mm
This product is oxygen air pump control valve.
Simply designed air valves are easy to use.
Sophisticated technology, accurate controlling.
Material:Plastic
Diameter:3.5cm(approx)
Color: Blue and Black
Quantity:1set
Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
packing:
20 pcs 4mm Aquarium Fish Tank Adjust Air Line Tubing Volume Flow Control Valves