Provided is a seal ring (14), such as a gasket, for use in connecting the end of a first conduit to the end of second conduit or other installation, in subsea environments. A metal gasket for providing a sealing connection between first and second tubular members comprises: two opposing side surfaces (30), each side surface comprising an annular recess (36) for receiving an elastomeric annular sealing member, an outer circumferential surface (26) comprising an annular rib portion (32), and an inner circumferential surface (28) comprising an annular channel (34). The gasket further comprises a first pair of annular tapered surfaces (38, 40) between the side surfaces and the outer circumferential surface; and a second pair of annular tapered surfaces (42, 44) between the side surfaces and the inner circumferential surface.