Note: The number in front of the wire size in the image represents the minimum diameter of the front end of the pagoda !!!! Our specifications refer to the smallest external diameter at the outermost end, and the specifications correspond to the inner diameter of the hose !!! Product material: Translucent is PP (polypropylene). Usage temperature: flammable, melting point 165 °C, softening around 155 °C, The operating temperature range is -30 ~ 140 °C. It resists corrosion by acids, alkalis, saline solutions and a variety of organic solvents under 80 °C, and can decompose under high temperature and oxidation. Product material: Milky white is PE (polyethylene). Usage temperature: flammable, melting point 112 ° C, operating temperature range -60 ~ 92 ° C. Not resistant to corrosion and acid Using the product: Non-Toxic, Insipid, High Temperature Resistant, suitable for direct pipe connection, practical and fast. Name: 4 mm filter Material: Pom (polyoxymethylene) Temperature: Normal