With a versatile and proven design, this Multiple Port Shower Sump handles water from a number of sources but takes up little space. Multiple inlet ports can be used in conjunction with freshwater systems such as galley appliances. Sump operates automatically. A check valve on the outlet prevents backwash. Includes easy-cleaning filter mesh and 3/4" discharge hose. Includes three inlets (one 3/4", one 3/4" or 1", and one 1 1/8" or 1 1/2").