In locked state, Han® B IP67 bulkhead mounted housings provide IP66 and IP67 protection to allow temporary, full immersion in water. Flange protects gasket seal, preventing water from penetrating connector, while circumferential collar prevents seal from sliding inwards or outwards and thereby provides additional protection against water ingress. Available in 6B, 10B, 16B, and 24B sizes, housing uses Han-Easy Lock® locking system to maximize contact pressure.