1.size:1/2-4 2.structure:ball 3.end connector:socket , thread 4.standard: BS, ANSI, DIN, JIS Production Detail Quick DetailsBrand: ZOOR ... Mainland) Standard: ANSI, BS, DIN, JISMaterial: Pvc Size: 1/2"-4" Type: Socket and threadPacking & DeliveryPacking Details: colorful box, polybag and ... , and no noise.7Each valve is pressure tested at the end after the factory, Lowest leakage rate.8)Quality: Heat, ...