ATTENTION: Working pressure is 1000 to 3200 PSI. Flow rate is from 1.5 GPM to 4 GPM. The presure which is higher than 3200 PSI not work. Application: Must Follow 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 choice of chemicals. Chemical injector has standard 3/8inch quick connect fitting. It connects pump to hose. Dilution ratio of chemical vs water can been adjusted by controlling metering valve. Works with most of gas and electric . Suitable for cold and hot water . colour: parent+gold Material:metal size:Tube length: about 3 meters Package contents: 1 x Chemical injector 1 x 10 Feet tubing 1 x Filter 1 x Black soap nozzle 2 x PTFE tape (The color is random, the specified color cannot be ) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.