[M22 to 1/4" Quick Disconnect ] M22 14mm male thread to 1/4" male quick disconnect plug, 1/4"quick disconnect to M22 14mm female thread. If your fitting is 15mm, it may cause leakage. [Easy to Use ] This pressure washer fittings are made of quality and durable solid brass and easy-to-install design, super wear and rust resistant, support longer service life.