Package: Kit Includes chemical injector, 10 feet siphon hose, filter, black nozzle soap with 3/8 " quick connect and tape. Application: When detergent is sucked out separately, the chemical not pass through the pump, you could use a variety of chemicals without damaging the pump. Characteristic: Chemical injector kit with a metering valve, which can adjust dilution ratio of soap and water. Avoid clogging of the injector and improve the efficiency of pressure washer. Connector: Downstream Injector has 3/8 inch quick connect. Fits most electric and power washer. It's connected between the pressure washer pump and the pressure washer hose. Material: Siphon hose is made of high-quality PVC, used for hot and cold water (32°F to 122°F). Adapter is made of brass and stainless steel. Max pressure is 4000 PSI. Flow rate is 2 to 5 GPM. Color: Picture Color Package Contents: 1 set Downstream Injector Only the above package content, other products are not included. Note: Light reflection 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.