Suitable for all  Koshin pumps with 1 inch inlet-outlet : SEV-25L, SEV-25F, SEH-25L, SEH-25H. With BSP thread and contents 0340781 Coupling, 0340782 Hose Nipple, 0340065 Coupling Packing . It can be used for all kind of Honda and Robin-Subaru waterpumps with 1" BSP thread for European market. Used with most water pumping applications with strainer 0118193.