LANCASTER X99 pumps are designed for gravity feed pumping applications. They will remove clean or waste water from a laundry tray/tub/sink in an area with no floor drains. These pumps can be located below the laundry tray/tub/sink and will pump wastewater to an overhead or remote drain line. No need to break through the floor for unsanitary sumps and sump pumps. Applications include: laundry tray, wet bar sink, lavatory sink, air conditioning condensate, dehumidifier water removal. NOT recommended for flammable or explosive liquids or liquids with solids, strong acids or caustics. Maximum water temperature 130° F