Deutsch HD30 Series Receptacle with an attached shell adaptor and cable clamp. Size 18 shell or 38mm diameter. Contains 8 size 12 sockets rated at 25A per circuit. These industry proven connectors are environmentally sealed to IP67 standards. Able to be used in both inline and bulk head applications. They have a quick connect bayonet style coupling. Specifically designed for the truck, mining and construction industry.