Amazon.com: ZZHXSM K Series Adapter K2-K7 High Pressure Water Gun Joint Foam Pot Refit 1/4 Quick Connect Fitting for Karcher K2-K7 and Stanley SLP Pressure Washer Spray Guns : Patio, Lawn &
Karcher 15 in. Universal Surface Cleaner Attachment for Gas Power Pressure Washers Rated 2600-3200 PSI - 1/4 in. Quick-Connect 8.641-035.0 - The Home Depot
Pressure Washer Adapter 1/4" Quick Connect Fitting For S10 Karcher K Series - Walmart.com