Fully self contained sump with multiple inlets, includes automatic switch to pump grey waste overboard, or to holding tank, via a single outlet hose. PUMP NOT INCLUDED. Capacity 8 ltrs (2.2 US gals). 12 or 24V. Hose Connections: 9 Inlets: 3x 19mm (3/4) + 3x 25mm (1) + 3x 38mm (1 1/2; 2 Outlets Hose Connections: 1x 19mm ( 3/4) + 1 x 25mm (1)