Product Name: Ductile Iron Grooved Coupling, Flexible Coupling
Standard: Victaulic
Size: DN50, 2 Inch
Wall Thickness: 4 mm
Body Material: Ductile Iron, ASTM A536 Grade 65-45-12
Gasket Material: EPDM
Bolts & Nuts: ISO 898
Certification: UL/FM
Surface: Red Epoxy Painting
Source: https://www.landeepipefitting.com/ductile-iron-grooved-couplings-astm-a536-65-45-12-2-inch.html