Description: Application: Universal quick connectors for pressure washer wand,gun or hose; Quick connect to Pressure Washer Extension Wand. High Efficiently: This is a set of standard quick connect fittings for pressure washer wand,gun or hose.Pressure Washer Adapter Set will make your washing work more efficiently. Easy to Use: High replacement couplers provide secure and quick fittings,easy to connect and disconnect. Replaceable O Rings Washers:If there is a leak in the connector,you can replace it with a new O Rings Washers,so that it can continue to work. Material:Brass + stainless steel + rubber. Specification: Material: Solid Brass Size Chart: M14X1.5 male and female head set (female head 14 internal thread, male head 14 external thread) is suitable for gun head and foam pot, quick nozzle. External thread diameter: 13.7mm Internal thread actual measurement: 12.5mm Male quick socket diameter: 11.8mm Quick socket: 11.8mm Package Includes: 1 Piece M14 Female Pressure Washer Adapter 1 Piece M14 Male Pressure Washer Adapter 10 Pieces Rubber Rings(2 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!