High-quality material: The control valve is made of high-quality copper, which is durable, high-performance, corrosion and rust-proof, and pressure-resistant. Circular release ring design: The pneumatic sealing release ring adopts a circular design, which is more convenient for disassembly and assembly. Better sealing. Safety: The pneumatic quick connector has high pressure resistance, can withstand strong pressure without tripping, and can work for a long time without tripping. Easy to use: Pneumatic quick connectors are easy to install. You just need to push the connecting tube with compressed air to ensure a firm connection without additional sealing. Mainly used for: The pneumatic quick connector is mainly used for quickly connecting air hoses, pneumatic tools, to adjust the air supply to change the drive speed of the pneumatic cylinder or other actuating elements. Function: 1. Lightweight 2. Easy to install 3. Safe and reliable 4. Durable 5. Improve work efficiency Product Specification: Name: SL Throttle Valve Color: Black + Silver Material: Copper Note: Data are all manual measurements, please allow 1 - 3 cm error, due to the difference in light and display, there will be a certain color difference, subject to the physical object received Delivery quantity: (according to the main picture)