Product Name: Neoprene Bellows Expansion Joint
Materials: Steel (Flange), Neoprene Rubber (Bellows)
Diameter: DN1200 mm, 48 Inch
Thickness: 20 mm
Pressure: 20 Psig
Hole Specifications: M40, 40 Holes, 1020 PCD
Source: https://www.landeepipefitting.com/neoprene-bellows-expansion-joints-48-in-20-mm-thk-20-psig.html