3 backward rotating sprinkle blasts into the clogged pipe and moves the nozzle through the pipe. At the meantime, it provides an even cleaning and flushes out debris. Fits sewer jet hose with 1/4" male end. 1/4" Female NPT Fitting. Inside diameter of thread is 0.47 inch. Made of stainless steel, corrosion resistant. Ideal for flushing debris or cleaning fixed pipes when connect to a sewer jetter hose. Sewer jetting nozzle is easy to slide into sewer lines and drain pipes. Orifice 4.5. Working pressure is up to 4000 PSI. Water temperate is up to 310 F. Small enough to clean in all of the tight spaces. Give you quick reply within 10 hours if any questions. are committed to developing more efficient and safer pressure washer accessory, helping people reducing the tiredness of spraying and cleaning in the garden. We are known for amazing pressure washer accessory, such as nozzle, wand, gun, coupler, foam cannon. We do everything in our power to ensure customers full satisfaction with the product quality and service. Feature1. 3 backward rotating spray.2. Working pressure is up to 4000PSI.3. Orifice 4.5.4. The end of sewer nozzle is 1/4" female NPT thread.5. Made of stainless steel, corrosion resistant.6. Working temperature is up to 310 F. Suitable for hot water.