Hydor Crystal Internal Filter 40-90 450lph K20 Duo

The internal CRYSTAL filter guarantees water filtration in two stages. The first is a mechanical filtering that captures the waste and larger particles dispersed in the water through a sponge. The second, on the other hand, can be chemical or biological depending on the filter material that will be inserted in the specific compartment: activated carbon for chemical filtering and crystalline water, ceramic materials for specific biological filtering to keep nitrates at a ideal level.

• Internal filter for aquariums
• 2-stage filtering system: 1st mechanical stage, 2nd stage of chemical or biological type
• Mechanical filtration by means of an open cell filter cartridge, captures waste and particles dispersed in the water
• Chemical or biological filtration: container that can be filled with activated carbon or other ceramic materials
• Equipped with special compartments for the insertion of filter materials, support bracket with suction cups
• Includes activated carbon and filter cartridge
• Incorporates a Venturi system for oxygenation of the water
• Direction of water flow adjustable
• This product is intended for indoor use only in water having a temperature not exceeding 35° C
• Anti-waste drop-out design
• Easy cleaning thanks to the possibility of unhooking the filter by levering the lower hook of the support

Available in different models:

50 of 4 W, maximum pump flow rate 170 l/h, max head 40 cm, recommended for aquariums from 20 to 50 litres

90 of 5 W, maximum pump flow rate 450 l/h, max head 50 cm, recommended for aquariums from 40 to 90 litres

150 of 10 W, maximum pump flow rate rate 650 l/h, max head 50 cm, recommended for aquariums from 80 to 150 litres

200 of 11 W, maximum pump flow rate 800 l/h, max head 60 cm, recommended for aquariums from 120 to 200 litres

300 of 12 W, maximum pump flow rate 900 l/h, max head 80 cm, recommended for aquariums over 200 litres