... :1/2'--4" 3,surface:natural colo brass universal check valves with stainless steel filter FW-C10271, body material: brass2, surface: natural color3, size: 1 ... Mpa5, suitable medium: water6, working temperature: -20°C≤t≤100°C7, packing: polybag with white inner box with standard export carton, also can ...