It can be sucked up from water stored such as buckets. It is necessary for use in places where there is no water supply or in special water faucets, or when you want to clean it with the remaining hot water or well water in the bath. Compatible models: Hidaka High Pressure Washer HK-1890, Kärcher Household High Pressure Washer (Self-priming model), Kärcher Commercial High Pressure Washer HD605, HD4/8C, HD7/15C, HD7/15CX, HDS4/7U, HD5/14B, HD830BS, HD728B, HDS801B Crantle Commercial High Pressure Washer K-11 22TST, Ryobi High Pressure Washer AJP-1210, AJP-1310, AJP-1420A, AJP-1420ASP, AJP-1520A, AJP-1520ASP, AJP-1620A, AJP-1620ASP, AJP-1700V