Lumberg Automation Solenoids Square connector 619582 - Lumberg 934888016, Lumberg Automation manufactures the GDM21F6 series valve connectors, including the transparent GDM21F6-L12-10D. This square connector is designed for reliable electrical connections in automation systems. It is typically used in processes where robust and durable connectivity is essential. Lumberg 934888016 GDM21F6 Valve Connector Transparent 1pc