WHALE Watermaster Truma Style Easi-Press Assembly High Flow. WHALE Watermaster with Easi-Press(TM) PlugSubmersible12v3-16 Litres. Suitable as a alternative for the Truma Pistol Grip plug & pump assembly ? Ultraflow System. Watermaster? Exterior Water Pump Range ? Simplifies the connection between an outside water container into the caravan. Simplifies the connection between an outside water container into the caravan Top performance pump Suitable for microswitch or pressurised systems High Quality Dust Cover Holds shape over time and prevents debris entering Incorporates an anti air-locking pump enhancing the performance of the WHALE water system The easily replaceable pump that can be removed and replaced if necessary Easy fit plug stays secure Protective Plug Cover Ensures seal is covered when stored. Sold in singles or Outer Boxes x 15.