1-11/16-12 Male O-Ring Face Seal Bulkhead Union ConnectorThe 1 1 4" Male O Ring Face Seal (ORFS) 1 1 4" Male O Ring Face Seal Bulkhead Union Connector is a hydraulic fitting designed to connect two fluid lines through a panel or bulkhead. Both ends feature male ORFS connections for secure, leak free sealing, while the bulkhead design allows the fitting to pass through and be secured in a panel or enclosure. This fitting is ideal for systems requiring fluid transfer across barriers without compromising seal