* Bottom Fill Valve for ceramic toilet. * 1/2 satandard fill water hole. * Preventing siphon design to insure water source to be clean. * High seal water performance and stable water level height. * Low working noise. * POM engineering plastic, long service life. * Short fill pipe and long fill valve body; * The height of fill valve can be adjusted. * Every fill valve is tested for correct function and to ensure that without any leak. * The using of first-class material can certify that the valves' useing life is long.