Practical Nozzles Cleaning Tool: High Pressure Washer Adapter Nozzle is very suitable for using to clean municipal sewer systems, drain pipes, and other tough to reach areas. Easy to Use: Pressure washer sewer nozzle is quick and easy to use for heavy dirty cleaning, such as leaves, dirts and clogs. Professional: The high pressure nozzle attaches to a standard garden hose. The household machine cannot be used. The machine is too small, Low flow machine is not suitable for use High Quality Material: Sewer Jetter Nozzle Made of high quality stainless steel material, very durable.Hydrodynamic drive, perfect for unplugging drains and pipes. High Pressure Washing Machine Nozzle: The high pressure washer adapter nozzle is suitable for strong flow cleaning machines, this nozzle adapter is designed to connect to high pressure washing equipment. Size Chart: 130L(Front 1 Rear 6, 1/2 Inner Thread) 3.5cmx3.5cm/1.38inchx1.38inch 30L(Front 1 Rear 6, 1/2 Inner Thread) 3.5cmx4.1cm/1.38inchx1.61inch 40L(Front 1 Rear 6, 1/2 Inner Thread) 3.5cmx4.1cm/1.38inchx1.61inch 50L(Front 1 Rear 6, 1/2 Inner Thread) 3.5cmx4.1cm/1.38inchx1.61inch 50L to 60L(Front 1 Rear 6, 1/2 Inner Thread) 3.5cmx4.1cm/1.38inchx1.61inch 70L(Front 1 Rear 6, 1/2 Inner Thread) 3.5cmx4.1cm/1.38inchx1.61inch 130L(Front 1 Rear 6, 1/2 Inner Thread) 4.4cmx6cm/1.73inchx2.36inch 50L(Front 1 Rear 6, 1 inch Inner Thread) 5.4cmx6.7cm/2.13inchx2.64inch 70L(Front 1 Rear 6, 1/2 Inner Thread) 5cmx6.5cm/1.97inchx2.56inch Package Includes: 1Nozzle Note: Please allow slightly errors due to manual measurement and different monitors.