Specifications: Material: Brass Alloy+Plastic+Zinc Alloy Working Pressure: 1.6MPa~3.2MPa. Temperature: 15-80 Centigrade Universal Retrofit Valve: Max. Internal Thread Type: 1/4" SAE Female Thread Min. Internal Thread Type: 8v1 Female Thread Outer Thread: Low Pressure 13mm R134A Quick Coupler BPV-31 Piercing Tap Valve: Replace part number: AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31. Compatible with 1/4 inch, 5/16 inch, 3/8 inch outside diameter pipes. Package Included: 1 Pc x Universal Retrofit Valve with Dust Cap 1 Pack x BPV-31 Piercing Tap Valve Kit We are committed to providing you with the best service experience. Your satisfaction is our unremitting goal. No matter you encounter any problems or need help, we are willing to go all out to provide you with support and solutions. Whether your question is about orders, products, logistics, or returns, our team will be happy to answer and help you. You can contact us with confidence and we will do our best to ensure your needs are met. We know that your time is valuable, so we promise to respond quickly to you in the shortest possible time. Whether you contact us by email or online chat, we will respond to your inquiry as quickly as possible and provide the assistance you need. You can rest assured that we are here to serve you! No matter what confusion you have, we will attach equal importance to your needs and feedback. Your satisfaction is our greatest motivation, and we will spare no effort to provide you with a service experience that exceeds your expectations. We always adhere to the concept of continuous improvement and constantly optimize our service processes and customer experience to ensure that our service levels are always maintained at the highest standards.