Powercare 3/8 in. Female Quick-Connect x M22 Connector for Pressure Washer AP31030B - The Home Depot
Amazon.com: POHIR Pressure Washer Adapter Set 8 Pack, 2 Different M22-14 Swivel to 3/8'' Male and Female Quick Connect, 3/4" Brass Garden Hose Quick Release Connector and M22 15&14mm to 14mm NPT