Switchcraft ip68 weathertight connectors switchcraft en3c18m26s weather tight free plug with 18 poles from the switchcraft en3 series ideally suited for use in the marine process control and medical electronics industries a double seal is created by moulding an o ring onto the cord housing and a gasket onto the panel housing a sealing cap is also available which suits both panel plugs and sockets switchcraft en3c18m26s 18 pole wtight free plug