Product Name: ASTM A182 F316 Pipe Union
Standard: MSS SP-83
Material: Stainless Steel ASTM A182 F316
Size: 1 Inch, DN25
Pressure Rating: Class 3000 LB
Connection Ends: NPT Threaded
Source: https://www.landeepipefitting.com/astm-a182-f316-pipe-union-mss-sp-83-1-inch-cl3000-lb-npt.html