Feature:1. The cover is engraved with the inner diameter size for easy identification and you can easily use the pneumatic throttle valve2. Has the characteristics of compression resistance, corrosion resistance, stable performance, and can accurately control the flowing rate3. With practical and convenient features, the oval release hoop is adopted, which makes the disassembly more labor saving and easy4. After careful polishing, the pneumatic throttle valve has glossy edges, so you don't have to worry about scratching your hands during use5. Can be used after the trachea is inserted, and the airtightness is good. Easy to operate, you can use the pneumatic throttle valve with confidenceSpecification:Item Type: Pneumatic Throttle ValveMaterial:PVCModel: SUPressure Resistance Range: 1.01.2MPaMedium: GasPurpose: To Control Fluid Flowing by Changing the Throttle Section or Throttle LengthApplicable Scene: Automation Equipment.Package List:5 x Pneumatic Throttle ValveNote:Do Not Use Quick Connectors in Electrostatic Sensitive Scenes, Which Will Cause System MalfunctionsPlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.