✿Can be connected to 1/4” sewer jetter hose. ❤❤The nozzles are used for Pressure Washers connected to a sewer jetter hose,Not fit for Garden hose or Water hose. ✿Applications: The water jetting sewer nozzles are always use to clean indoor or outdoor drainage of many types, combined with any type of pressure washer & a sewer jetter hose, such as house drainage line, clogged toilet, clogged sink, industrial pipe and tube cleaning, general sewer drain cleaning etc.