The quick coupling socket with hose end, available with or without a shut-off valve, is designed for versatile use in water, chemical, and pneumatic installations, offering a lightweight alternative to traditional heavy couplings with balls and securing sleeves. Its ergonomic design and large disconnect button ensure effortless handling, while the high-performance valve guarantees excellent flow capacity with minimal leakage. The innovative construction allows slight hose rotation, effectively preventing twisting and reducing the risk of accidental disconnection, which significantly improves safety and reliability during operation. Manufactured from durable polypropylene and equipped with an EPDM o-ring seal, the coupling delivers long-lasting resistance to demanding working conditions. With a working pressure of up to 4.2 bar and an operating temperature range from 0°C to +71°C, it is perfectly suited for applications such as chemical photographic processes, battery and accumulator filling systems, sprayers, pneumatic installations, and non-freezing liquid distribution. Its compact length and optimized structure make it an efficient, user-friendly, and highly dependable solution for both industrial and specialized technical environments.