Features Simpler Control: Suitable for various pipes with 8mm outer diameter, the air flow valve enables better control over the flowing. Firm Connection: Able to withstand 0.1‑0.7MPa operating pressure, the flow valve also ensures firm connection without leakage. Practical Using: Can be widely applied to air ducts, pneumatic tools and so on, suits for PU, PA, PE and PVC piping, very useful. Better Material: Mainly made from premium PVC material, not likely to trip, and has excellent durability for long term using. Easy to Install: Comes with a light weight and a compact size as well, the easy installation can be quickly finished in minutes. Specification: Item Type: Air Flow Control Valve Product Model: AS2052F 08 Product Material: PVC Working Medium: Non Corrosive Air Suitable Pipe Outer Diameter: Approx. 8mm / 0.31in Maximum Operating Pressure: 0.7MPa Minimum Operating Pressure: 0.1MPa Scope of Application: Applicable to air ducts, pneumatic tools, etc.  Package List: 5 x Air Flow Control Valve Package List 5 x Air Flow Control Valve