AST Works M22-4 Thread 4 Terminals Waterproof Connector Cable Male Connect Butt-Type Description: this waterproof connector is widely used in solar panel system and electric wire connecting etc. Specification: product name: waterproof connectorwaterproof level: ip67 ip68connector: male to femalepanel thread diameter: m22(22mm/0.86inch)terminals: 4 terminalstotal size: 57mm x 26.2mm/2.25inch x 1.03inch(l*d max. )material: plastic, metalmain color: black, silver toneweight: 20gpackage content: 1 x waterproof connector