A3000
This pump has a maximum capacity of 2760 litres per hour at zero head.
It has a maximum head of 3.2 metres.
It is suitable for ponds up to 5500 litres (1200 galls).
Power consumption is 70 watts
A3500
This pump has a maximum capacity of 3300 litres per hour at zero head.
It has a maximum head of 3.6 metres.
It is suitable for ponds up to 6500 litres (1400 galls).
Power consumption is 86 watts
A4000
This pump has a maximum capacity of 3600 litres per hour at zero head.
It has a maximum head of 4.0 metres.
It is suitable for ponds up to 7000 litres (1500 galls).
Power consumption is 104 watts