When you visit my website, you must have some thoughts in mind! Linwo Medical offers hundreds of connectors for you to choose from, with different materials, colors, and specifications. There is always one that suits you. We believe that we have sufficient strength to leave a deep impression on you. If you encounter any issues while browsing our website, please contact us promptly. We can solve all your questions and provide you with certain technical support, and we look forward to working with you.   Looking forward to working with you！          The 400 series products can be used for medical tracheal connections, water purifiers, industrial gas pipelines, etc., with a flow rate of 1/4 "-3/8", and there are various materials for you to choose from.