Durable Material: Coffee pot pressure reducing valve is made of high quality copper material, fine workmanship, sturdy and durable. Uses: Coffee pot pressure valve reduces the internal pressure of the coffee pot to ensure the taste of coffee. Easy to Use: Screw the coffee pot pressure reducing valve directly onto the coffee pot for a convenient user experience. Easy to Install: Coffee pot safety valve accessories are easy to install and disassemble, allowing direct replacement of old or damaged parts. Simple installation and reliable performance. Application: Coffee pot pressure valve thread diameter is 0.75cm, suitable for most coffee pot sizes. Specification: Material: Copper Size Chart: Thread Diameter: 0.75cm / 0.30 inch Package Includes: 1 x Coffee Pot Pressure Reducing Valve Note: Please allow slight variations due to manual measurement and differences in display monitors.