4000 This pump has a maximum capacity of 4000 litres per hour at zero head.
It has a flow rate of 3200 litres per hour at a head of 1.0 metre.
It is suitable for ponds up to 8000 litres (1750 galls).
Power consumption is 62 watts
6000 This pump has a maximum capacity of 6000 litres per hour at zero head.
It has a flow rate of 4100 litres per hour at a head of 1.0 metre.
It is suitable for ponds up to 12000 litres (2600 galls).
Power consumption is 69 watts.
9000
This pump has a maximum capacity of 9000 litres per hour at zero head.
It has a flow rate of 5200 litres per hour at a head of 1.0 metre.
It is suitable for ponds up to 18000 litres (4000 galls).
Power consumption is 87 watts
12000 This pump has a maximum capacity of 12000 litres per hour at zero head.
It has a flow rate of 8200 litres per hour at a head of 1.0 metre.
It is suitable for ponds up to 24000 litres (5250 galls).
Power consumption is 115 watts.
16000
This pump has a maximum capacity of 16000 litres per hour at zero head.
It has a flow rate of 16000 litres per hour at a head of 1.0 metre.
It is suitable for ponds up to 28000 litres (6150 galls).
Power consumption is 235 watts
20000 This pump has a maximum capacity of 20000 litres per hour at zero head.
It has a flow rate of 14500 litres per hour at a head of 1.0 metre.
It is suitable for ponds up to 36000 litres (7900 galls).
Power consumption is 335 watts