NPT 3/8″ Quick Connect Pressure Washer Adapter Plug Stainless 5000PSI 10 Pcs by | Jul 25, 2026(10PCS 3/8” quick connect plug to 3/8” NPT male thread and 3/8” quick connect socket to 3/8” NPT male thread). Upgraded material: Pressure washer adapter set is made of stainless steel. High quality and hardness.