Fits PerfectReplaceable Water Flosser Handle fit most WPSeries Compatible with WP100 WP140 WP150 WP900 Oral Irrigator etc Please check the adapted model carefully before purchasing Easy to InstallWhen you need to replace this water hose handle you just need to remove the 2 screws at the bottom of the flush with a small head screw driver Easy and convenient Unique Button DesignTo avoid turning off the water at the handle for long time would cause the motor to overheat we design that you press the button to turn it OFF The onoff switch on your flosser is what turns the pump onoff Money SaverA great replacement parts kit for your water floss machine The oral hygiene accessories comes with a new plastic handle 1m hose gasket and 2 screws you neednt buy a new expensive flosser Considerate ServiceBuy this handle with confidence and replace to keep your water flosser maintained at maximum performance NOTEWhen installing the product please check carefully whether the bottom of the host is assembled in place the screws need to be tightened and make sure not to dismantle the sealing ring otherwise it will cause a gap between the base and the hose leading to water leakage at the bottom of the machine And after using the product you need to put the handle upright and correctly back to the host of the handle slot to avoid water leakage due to gravity tip