Product Item: Galvanized Full Coupling, Reducing
Standard: ASME B16.11
Material: ASTM A105
Size: 1 * 1/2 Inch
Pressure Rating: Class 3000 LB (PN400)
End Connection: Threaded

Source: https://www.landee.cn/astm-a105-reducing-coupling-asme-b16-11-1-1-2-in-cl3000.html