Product Name: ASTM A182 F304 Pipe Union, Sanitary Pipe Union
Standard: DIN Standard
Material: Stainless Steel, ASTM A182 F304
Size: 3/4 Inch, DN20
End Connection: NPT Threaded
Source: https://www.landeepipefitting.com/astm-a182-f304-pipe-unions-stainless-steel-3-4-inch-npt.html