FEATURES TIGHTLY SEALED DESIGN: This stop valve features a tightly sealed mechanism, ensuring secure installation without leaks. You can trust it to maintain optimal performance, providing peace of mind in any plumbing setup. THICKENED MATERIAL AND STRONG SPRING: Crafted from thickened brass, this valve includes a robust support spring for durability. The high-temperature forged design guarantees long-term use without the need for core replacement, enhancing its longevity. LEAK-PROOF OPERATION: The valve operates efficiently, automatically opening with angle valves and faucets upon installation. It safely closes when removed, ensuring no leaks occur during system operation, promoting a reliable plumbing system. CONVENIENT PLUG-AND-PLAY INSTALLATION: Featuring 1/2 inch joints, this valve allows for easy plug-and-play installation. No need for raw tape, making it user-friendly and perfect for quick setups or replacements. VERSATILE HOME USE: Ideal for various applications throughout your home, this valve eliminates the need to turn off the main valve during changes. Enjoy hassle-free maintenance and repairs with this versatile solution. SPEC Material: Brass Installation diameter: 1/2 inch Size:21mm*21mm Package Included:1*Universal Brass Stop Valve with Sealing Gasket NOTES For best performance, ensure proper installation according to manufacturer guidelines.