* This product is made of low pressure HDPE featuring light weight, acid/ base and corrosion resistance and easy cleaning and easy carrying etc. * The front end of sprayer with hose is provided with on/ off button and can be swung randomly and switched on or off instantly with high efficiency, convenient and chemicals saving. * The chemicals box and its semi-transparent cover are graduated to provide convenient and precision to chemical proportioning. * The product is rationally compact in structure and light and convenient enough to operate. * The employment of patented technology enables it to have advantages of preventing chemicals from back flow over other similar products