Metallic 'O'-Ring Gasket, Helicoflex Hn 200, Torus-5, Id Xod X Cross Section(Mm) : 499.5 X 509.5 X 5 , Metallic 'O'-Ring Gasket, Helicoflex Hn 200, Torus-5, Id X Od X Crosssection(Mm) : 339.5 X 349.5 X 5 Quantity: 10