Home » Shillafire » Nakajima Quick Coupling (For Vessels) Nakajima Quick Coupling (For Vessels) The coupling is mostly used for vessels, and connection and separation are convenient. Also, bronze material is mostly used to prevent corrosion from seawater. Categories: Shillafire, Connector Tags: Connector, Fire Fighting Equipment, Shillafire You may also like… Double Male Coupling (NH Standard) BS Quick Coupling (British Coupling) Machino Quick Coupling Hose Coupling (NH Thread) Female to Male Coupling (NH Thread) Related products Hydrant Pillar One Way Fire Extinguisher 10 TALL ABC Fire Extinguisher – 105 ABC Hydrant Box Type – A1 Hydrant Box Type – C