Product Name: EPDM Rubber Expansion Joint
Materials:
Ball (Bellows): EPDM Rubber
Threaded Union: Stainless Steel SS 316
Size: DN50, 2 Inch
Pressure Rating: PN16, Class 150 LB
Length: 120 mm
Source: https://www.landeepipefitting.com/epdm-rubber-expansion-joint-2-inch-150-lb-threaded-union.html