Features 5 PCS IN 1 SET: Including 5 pcs pipe throttle valves, suitable for non-corrosive air medium, sufficient quantity for easy use and replacement. PVC MATERIAL: These throttle valves are made of PVC material, which can withstand higher pressure without triggering, stable and durable. APPLICABLE PIPE: The pneumatic throttle valve is applicable to the OD of 4mm pipe, with tight connection and no air leakage. VERSATILE USE: The quick connector is suitable for air hose, pneumatic tools, etc., as well as PU, PA, PE and PVC products, small and convenient. WITH LOCK NUT: These throttle valves are equipped with lock nuts, which are locked after adjustment to ensure no drifting, stable and reliable. Specification: Item Type: Throttle Valve Product model: AS2002F 04 Product material: PVC Working Medium: Non-corrosive air Applicable Pipe O.D.: Approx. 4mm/0.16inch Maximum working pressure: 0.7MPa Minimum working pressure: 0.1 MPa Scope of application: Applicable to air hoses, pneumatic tools, etc. Package list: 5 x throttle valves Package List 5 x Throttle Valves