Highlights: [M22-14mm Female to M22-15mm Male Adapter] Pressure washer fittings connect M22-15mm pressure washer hose with M22-14mm outlet power washer and gun. [Surface Anti-corrosion Treatment]  Pressure washer hose adapter is made of high-quality aluminum with a special anti-corrosion treatment on the surface, no shake or leaking, which is more durable and sturdy than other untreated adapters. [Pressure Resistance & Longevity]  Support up to 4,500 PSI for optimal pressure, works great on gas and electric pressure washers, nice choice for both professional, business, and household users. [Easy to use]  Non-slip cover design for easy connection, Good Metric thread process ensures smooth installation without stuck. [Customer Service Support & Technical Support] If there is any quality problem with the product, please feel free to contact us and our customer service team will help you solve your problem. Or If you aren't sure that your pressure washer matches it or not, please feel free to contact us.