C.R. LAURENCE GENGK1 CRL Geneva Hinge Replacement Gasket Pack With Fin. We stock CRL Replacement Gaskets are designed to fit some of our most popular Hinge Series. Packages contain two thick and two thin gaskets, in either black or clear (except designated 2.5 mm thick Gaskets that come in packs of two). Gaskets for Hinge Series not shown here are available on special order.. Part Numbers Variations: GENGK1