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Lift-Lock Clamps
Two prominent clamps expedite the removal of the motor housing from the filter unit. By simply lifting the
clamps, the motor unit is separated from the filter's suction grip.
Hose Lock Nuts
Safety connectors ensure a tight, leak-proof seal for all hose connections.
Criteria for Filter Selection
Flow Rates
Fluval Filters have four sizes able to handle all aquarium requirements, from the smallest to large commercial
aquariums. Flow rates start at 480 liters per hour up to 1020 liters of hourly turnover depending on the
model. Important factors in the choice of any filter are the filtration volume and flow rate. The combination
provides the essence of good filtration.
Another important aspect of any filter is water circulation
requirement for bacteria and biological filtration. The more water filtered per hour, the cleaner the aquarium
will remain.
Fluval's combination of contact time and flow provide the ideal filter function.
Aquarium Capacity
Pump Output
Mechanical Area
Biological Volume
Filtration Volume
Filter Circulation
Filter Area
f.4 f.5
Fluval has always utilized as much of the canister volume as possible. With the 4
redefined water flow characteristics to provide more places for specific media as well as increase the actual
contact path through the canister. The filter chamber has been redesigned to provide greater volume in its
modern aesthetic design. The more filter media volume, the greater the mechanical efficiency and biological
activity for the filtering process. Fluval meets this criteria.
Fluval Operating Characteristics
The intake stem is directly attached to the input/output block, which can be positioned anywhere on the
aquarium rim. Preferably, this is a location that can be easily disguised by assorted decorations. The most
usual placement is on the back wall of the aquarium. The intake stem draws water and suspended debris
near the aquarium's bottom into the filter unit by siphoning.
Water flows through the input assembly and into the input section. It must pass through the double foam
insert which strips most particulate matter from the passing flow and holds it. It then must flow down under
the first media module and start its journey up through the grid into the rest of the media. The pump draws
the water upward through the media chambers where it must come into contact with each stage of filtration.
Tremendous versatility of media choice is allowed by this arrangement of media modules. The traditional
ease of access to all media modules without disturbing the rest of the media is maintained and enhanced by
this new configuration. Filter media removes particles and liquid impurities and can also be used to actively
change the chemical characteristics of the water, depending on the aquarist's needs. As the water flows, it
brings oxygen into the filter, feeding the needs of the beneficial bacteria breaking down nitrogenous wastes.
After passing through each discrete chamber, purified water enters the impeller well to be pumped back to
the aquarium.
f.9
f.10
104
100l/25 U.S. Gal.
200l/40 U.S. Gal.
l/h
2
36,800 mm
1,37 l
3,2 l
l/h
f.1
and oxygenation. This is an important
204
300l/70 U.S. Gal.
l/h
2
56,000 mm
56,000 mm
2,0 l
4,6 l
l/h
304
404
400l/100 U.S. Gal.
l/h
l/h
2
76,300 mm
3,1 l
4,2 l
6,6 l
8,5 l
l/h
l/h
th
generation, Fluval has
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