The ip67 connectors can be used for both cable to cable (in-line) or cable to panel-mount connections.

SD28 waterproof plug connectors is  a large sized plastic shell IP68 waterproof wire connector.The user can attach the wires to the connector by solering & screw.

SP21 connector is  a large sized plastic shell IP68 waterproof wire connector.The user can attach the wires to the connector by solering & screw.