Features: - Caliber size: 4mm, suitable for PU air tube, PE air tube, nylon tube with an outer diameter of 4mm. - Good sealing performance, strong and durable, high density, not easy to burst and leak. - Made of strong plastic material, high strength, wear resistance and corrosion resistance, long service life. - Freely change the direction of the pipeline after installation, easy to manually insert or pull the tube, comfortable to use. - Mainly used for air compression systems, vacuum systems, pneumatic systems, etc. Specifications: - Material: plastic - Fluid type: Air - Caliber size: 4mm - Normal pressure range: 0 to 1Mpa - Maximum pressure: 1.32Mpa - Low pressure range: -99.9 to 0Kpa - Working temperature: -20 to 60 °C - Suitable outer diameter of tube: 4mm - Applicable tube: PU air tube, PE air tube, nylon tube - Weight: 80g - Quantity: 30 pieces Measurements: - Width: 12 cm - Height: 1 cm - Length: 17 cm - Weight: 0.08 kg