Working matters: the max pressure of this sewer jetting nozzle working is 5000 PSI, the diameter of orifice is approx. 0.5 mm/ 0.02 inches, and the maximum heat that can be tolerated is 310u00b0F Sturdy material: the pressure drain jetter hose nozzle is made of stainless steel, which is durable and resistant to corrosion, all-stainless steel structure makes it difficult to break, providing long-term service for you Applications: this sewer jetting nozzle can be applied widely in cleaning applications, such as general sewer, drain cleaning, industrial pipe and tube cleaning to provide good cleaning results and efficient work efficiency Practicality: this sewer jetting nozzle designed with 1 forward jet and 6 rear jets, 1 forward hole is ideal for cutting debris and breaking up stubborn dirt forward, 6 backward holes drive the nozzle forward and flush debris Solve blockage problem: this sewer spray nozzle can be connected to the 1/4 quick connector to make the water more powerful, which allows you to remove these water, grease, lint, hair, etc. to easily solve your drain pipe blockage problem