Jecod 'Professional' Range DCP Pumps These new pumps improve on the previous DCP pump design as follows: Sine Wave controller technology provides super quiet operation New Digital Controller- Speed Control Settings Between 30%-100% in 1 Watt increments (DCP4000 and DCP2500 has an 8 speed controller) Digital display of power consumption. Suitable for external and internal operation Seals for input and output connections Improved Head Pressure Performance over DCP Models New Enclosed Impeller Design For a more Quiet Operation Energy Saving up to 65% IC Electronic Detection- Automatic Power Off Protection Upon No Water Wear Resistant Ceramic Shaft Features DCP-2500 (23W) Maximum flow rate of up to 2,500 litres/hour - adjustable from 750 - 2,500 litre/hour ( in 8 steps ) DCP-4000 (33W) Maximum flow rate of up to 4,000 litres/hour - adjustable from 1,200 - 4,000 litres per hour ( in 8 steps ). DCP-6500 (55W) Maximum flow rate of up to 6,500 litres/hour - adjustable from 1,950 - 6,000 litres per hour in 1W steps. DCP-8000 (65W) Maximum flow rate of up to 8,000 litres/hour - adjustable from 2,400 - 8,000 litres per hour in 1W steps. DCP-10000 (80W) Maximum flow rate of up to 10,000 litres/hour - adjustable from 3,000 - 10,000 litres per hour in 1W steps. DP-13000 (95W) Maximum flow rate of up to 13,000 litres/hour - adjustable from 3,900 - 13,000 litres per hour in 1W steps. DCP-15000 (105W) Maximum flow rate of up to 15,000 litres/hour - adjustable from 4,500 - 15,000 litres per hour in 1W steps. DCP-18000 (145W) Maximum flow rate of up to 18,000 litres/hour - adjustable from 5,400 - 18,000 litres per hour in 1W steps. DCP-20000 (170W) Maximum flow rate of up to 20,000 litres/hour - adjustable from 8,000 - 20,000 litres per hour in 1W stepss.