Brass Valve Core, Cartridge: 1. Material: Brass 2. Type: Valve Core, Cartridge 3. 10 years OEM experience 4. ISO9001: ... : Brass 58-3A, C37700, lead-free, or according to your requests.3. Size: 3/16", 1/4", 5/16", 3/8", ... 3/4", 1/2”, 2”, etc, can be customized.4. Structure: Forged body, brass Core. 5. Surface ... . Please feel free to contact us for more information. Brass Valve Cartridge