Specifications: Type: Air Valve Outlet Diameter: 4mm Inlet Diameter: 4mm Fit standard 3/16" diameter tubing
Feature: These aquarium oxygenation gas supply system accessories work seamlessly with the air pump air pipe, allowing you to fine-tune the gas amount. The size of the switch is adjustable, making it suitable for general control of air pump output and other applications requiring size adjustment. The valves are crafted with exquisite workmanship, providing accurate control.
