For pond up to 40,000 litres without fish , 20,000 litres with fish. Set includes AquaMax Eco Premium 12000 Pump and Bitron C 36 W UV

For pond up to 60,000 litres without fish , 30,000 litres with fish. Set includes AquaMax Eco Premium 16000 Pump and Bitron C 55 W UV

For pond up to 90,000 litres without fish , 45,000 litres with fish. Set includes AquaMax Eco Premium 20,000 Pump and Bitron C 110 W UV

For pond up to 18,000 litres without fish , 9,000 litres with fish

For pond up to 24,000 litres without fish , 12,000 litres with fish

For pond up to 36,000 litres without fish , 18,000 litres with fish