The ERIKS 797057 Bulkhead Coupling 20-S is a genuine heavy series (S) hydraulic fitting designed for secure and reliable connections through a panel or bulkhead. Constructed from durable steel, this coupling is engineered to withstand high operating pressures up to 400 bar (40 MPa) and operates within a temperature range of -25°C to +100°C. Featuring an M30x2 thread, it ensures a robust and leak-free connection in demanding hydraulic systems.