ATTENTION: Working pressure is 1000 to 3200 . Flow rate is from 1.5 GPM to 4 GPM. The presure which is higher than 3200 will not work. Application: Must Manual to Set Up Chemical Injector. It is used to siphon detergent out of separate container. The chemical runs after pump. So it allows for a wider choice of chemicals. Chemical injector has standard 3/8inch quick connect fitting. It connects pressure washer pump to hose. Dilution of chemical water can been adjusted by controlling metering valve. Works with most of and electric pressure washer. Suitable for cold and hot water pressure washer. colour:Transparent+gold Material:metal size:Tube length: about 3 Package contents: 1 x Chemical injector 1 x 10 Feet tubing 1 x Filter 1 x Black soap nozzle 2 x tape (The color is random, the specified color cannot be ) Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.