High Quality Material: The control valve is made of high quality copper, which is durable, high performance, anti-corrosion and anti-rust, and pressure resistant. Circular Release Ring Design: The pneumatic seal release ring adopts circular design, which is more convenient for disassembly and assembly. Better sealing. Safety: The pneumatic quick coupling has high pressure resistance, can withstand strong pressure without tripping, and can work for a long time without tripping. Easy to Use: Pneumatic quick couplers are easy to install. You only need to push the connection pipe with compressed air to ensure a firm connection without additional sealing. Mainly Used for: The pneumatic quick connector is mainly used to quickly connect air hoses, pneumatic tools, to adjust the air supply to change the driving speed of the pneumatic cylinder or other operating elements. Function: 1. Lightweight 2. Easy to install 3. Safe and reliable 4. Sustainable 5. Improve work efficiency Product Specification: Name: SL Throttle valve Color: Black+Silver Material: Copper Package Information: 1 SL Throttle Valve Reminder: Please check the correct model and size installed before installation.