4. The quality of the pump head directly determines the pressure and the length of the service life of the cleaning machine. It is very important to choose the right product. 3. The pump head is used for the guide car S6 S2 S1,for , for , for STT all series,available for white horse series and series. 1. The car washing machine has no problems such as pressure and no water, just simply replace the pump head. 2. The pump head is a set of assemblies, including water inlet and outlet valves and other accessories. 5. The powerful water pressure is powerful, which can easily wash away the dust and dirt without damaging the paint., Weight: 1.5983513995 pounds, Manufacturer: melairo