JBL CRISTALPROFI e902 UK, G-plug
175.32 EUR
Price incl. 23 VAT plus Delivery
In stock – delivered to you in 1-3 business days
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Product features
- External filter for clean and healthy aquarium water: Closed water circulation system for aquariums from 90 to 300 litres (80 to 120 cm)
- Fully equipped and ready to connect: built-in quick-start device, filter start without water intake. Easy assembly
- Extremely quiet operation at 900 l/h pump output. Patented pre-filter system with 100% more surface area than the Model 901, high biological filter performance with 7.6 l volume, water stop, hose connections can be rotated 360°, easily replaceable filter
- TÜV tested, safe and energy efficient: lower power consumption than comparable predecessor models – consistent performance
- Scope of delivery: External filter system for aquariums, including 12/16 hoses & pipes, suction basket, angle piece, suction holders, filter media (biofilter balls and biofilter foam), dimensions (LxWxH): 18 x 20 x 40 cm. Warranty: 2 (+2 years upon
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In unserem FAQ‑Bereich findet ihr Antworten auf die am häufigsten gestellten Fragen. Solltet ihr hier nicht fündig werden, zögert bitte nicht, uns direkt zu kontaktieren – wir helfen euch gerne weiter.
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What could be causing my filter to lose performance?
The main reasons for performance losses in external filters such as the JBL CristalProfi e700, e900, and e1500 are: a) Contamination and thus reduced throughput through the filter media, and b) The formation of so-called biofilms in the hoses. The latter in particular is associated with a significant loss of performance.
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Does the filter start up again on its own after being disconnected from the power supply?
The filter (CristalProfi) will restart automatically when disconnected from the power supply, provided that there is water in the filter circuit.
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The start button on the CristalProfi external filter is stuck and does not return to its original position after being pressed.
This is most likely due to the start button being pressed slightly askew. Solution: Please loosen the 4 screws at the corners that secure the side handles. After removing the handles, 4 more screws will appear that secure the pump head cover. After loosening these, the pump head cover can be removed. The start button is screwed onto a screw connection and can be loosened by turning it. In most cases, the spring of the start button will release after the first turn. The pump head cover and handles are reassembled in reverse order.
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Can the rotors from the JBL CristalProfi e700, e900, or e1500 filters be used in the Greenline JBL CristalProfi e701/2, e901/2, or e1501/2 filters?
The rotors of the JBL CristalProfi e700, e900, or e1500 filters do not fit into the rotor housings of the JBL CristalProfi e701/2, e901/2, or e1501/2 filters. Please use only the original rotors. No warranty can be given for other combinations.
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My external filter is loud or gurgling after installation.
In new installations, the remaining air escapes from the filter media within the first 5-7 days. This causes a "gurgling" or intermittent rattling noise. Further problems may occur due to resonance transmission. Please ensure that the filter has 4 rubber feet on the bottom and that it only comes into contact with the cabinet there. Place the filter on a soft surface to test it and make sure that the hoses do not come into contact with the base cabinet. If you notice air in the filter, please check the hose on the inlet side for air pockets and bubbles. These indicate an air source near the intake pipe.
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My external filter is making loud, gurgling noises
This is most likely due to a small bubble forming periodically in the pump head of the CristalProfi, which is then transported out of the filter. If air enters the filter system, this indicates, for example, that a seal is no longer tight or that the connection pieces are not tight. As there is a slight vacuum during operation, this may not necessarily be noticeable. If this is the case, you can test for leaks by temporarily switching off the filter. This will allow the water to escape from the affected area. Caution: Only carry out this check under supervision. Be sure to check the hoses on the inlet side for air pockets or fine bubbles. Often, the seat on the JBL InSet is simply no longer tight. Another possibility is that the filter material is very dirty, which can lead to the formation of foul-smelling gases that are periodically pushed out of the filter. Please restart the filter as follows: Remove the water from the filter body and the hoses. Make sure that both small shut-off levers on the pump head are in the "OPEN" position. During the following start-up process, the water outlet pipe with the jet nozzle etc. must be ABOVE the water level so that the device can be vented optimally. Press the "START" button on the pump head repeatedly with the palm of your hand until water begins to flow into the suction hose (hose connected to "IN"). Now wait until the filter is completely filled with water and the water in the hose to the water outlet pipe (hose connected to "OUT") is at the same level as the water level in the aquarium. Connect the filter to the power supply. The water will now flow from the water outlet pipe into the aquarium. Initially, it may be mixed with air that has become trapped between the layers of filter material. Gently shaking the filter will release the air and allow it to escape with the water flow.
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The filter no longer draws in water.
Please clean all hoses, pipes, and the filter so that no biofilms, algae, or sludge remain. Rinsing with tap water is not sufficient. Please use the JBL Cleany hose brush for this purpose. Then remove the water from the filter body and the hoses. Make sure that both small shut-off levers on the pump head are in the "OPEN" position. During the subsequent start-up process, the water outlet pipe with the jet pipe etc. must be ABOVE the water level to ensure that the device is properly vented. Press the "START" button on the pump head repeatedly with the palm of your hand until water begins to flow into the suction hose (hose connected to "IN"). Now wait until the filter is completely filled with water and the water in the hose to the water outlet pipe (hose connected to "OUT") is at the same level as the water level in the aquarium. Connect the filter to the power supply. The water will now flow from the water outlet pipe into the aquarium. Initially, it may be mixed with air that has become trapped between the layers of filter material. Gently shaking the filter will release the air and allow it to escape with the water flow.
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Can the filter be switched off temporarily by turning off the shut-off valves?
No: The two adjustment taps are not suitable for temporarily switching off the filter because when the motor is running, the rotor is turning and the flow is shut off, the entire load is on the rotor and cooling of the pump head is no longer guaranteed.
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My filter won't start again, what should I do?
Please check the following: Detach the pump head from the filter container, remove the rotor cover, and check that the rotor is securely in place. Remove the rotor and clean it together with the rotor shaft. Then reinstall the parts. Next, briefly plug the power cord into the power outlet. The rotor will start again and you will feel the magnetic force.
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Are the CristalProfi e-series also suitable for saltwater/brackish water aquariums?
Yes, they can be connected to a saltwater/brackish water aquarium without any concerns.
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Can an external filter lose performance?
The motors in the pump heads of JBL CristalProfi external filters are synchronous motors, which means that they rotate at a speed determined by the mains frequency; at 50 Hz, this is 3,000 revolutions per minute. This means that an external filter cannot lose any power. If the flow rate decreases, this is either due to dirty filter media or the development of so-called biofilms, especially in the hoses. Please clean the hoses regularly with a hose brush to remove the biofilms. Rinsing with warm water is not sufficient. The cleaning interval may need to be increased at the beginning.
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Can I feed the carbon dioxide (CO2) into the intake manifold of the external filter?
It is not recommended to add carbon dioxide (CO2) to the aquarium water via the intake side of an external filter such as the JBL CristalProfi. This can be done via the pressure side (outlet) using an inline diffuser such as the JBL ProFlora direct. The following disadvantages arise when introducing CO2 via the suction side: 1) There is always a slight negative pressure in the running filter, which can cause the CO2 to escape. 2) The undissolved gas bubbles collect in the rotor housing, which can lead to running noises. 3) There is also a risk of the water flow in the rotor housing being interrupted, which can lead to the filter malfunctioning. 4) The function of the start button when starting up the filter is impaired.
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The start button on the new filter is stuck – what should I do?
The start button is difficult to press the first time, as it needs to be activated. Use both hands, lean over the filter, and press the button firmly. A clicking sound will activate it and confirm that you have done it correctly. The start button can now be easily pressed with one hand.
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My filter is noisy after a few months of operation. What is the cause of this?
The filter rotor is subject to constant wear. We recommend replacing it. This will restore smooth operation. Make sure that the noise is not caused by air pockets. The warranty covers assembly and material defects. Wear parts such as the pump impeller and axle, as well as damage caused by external influences and improper handling, are excluded from the warranty.
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Wear on the rotor—when should I replace it?
There is no general answer to this question. As with a car tire, the duration and intensity of use are decisive. Many customers use the rotors for several years without noticing any noticeable change. Heavy use of the rotor will shorten its service life. With a car, you are familiar with wear and tear caused by heavy braking, mechanical damage, and high mileage. The following factors apply to a rotor: 1. Operating time in hours 2. Throttling of the flow rate (max. 50%) and thus lower cooling capacity 3. Dry running when changing the water (see 2.) 4. Mechanical damage (e.g. caused by snails, improper installation after removal, etc.) 5. Heavy soiling As this is a wearing part, the rotor is not covered by the warranty. For a long service life, you should clean it regularly. This will prevent increased running noise. The rotor housing, rotor, and axle can be cleaned with a suitable cleaning brush. If the rotor needs to be replaced due to wear, the entire set, including the rotor with axle and 2 rubber bearings, must always be replaced. This is the only way to ensure proper functioning and smooth operation. When removing the rotor and axle, a rubber bearing often gets stuck at the bottom of the rotor housing and is very difficult to remove. JBL has developed a special tool for this purpose, which is available from pet stores under the name "Pull-out aid for rotor bearings." A useful cleaning brush for the rotor housing is also included with the tool.
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The filter/pump hums during operation
You don't need much to investigate the cause. For internal pumps and filters, all you need to do is keep the device free in the water without it coming into contact with other objects. It is important that the device remains completely submerged and only comes into contact with your hand. If the running noise is now quiet, there is no wear on the rotor, but rather resonance transmission to surrounding elements such as the cover, the base cabinet, or anything adjacent to the aquarium. You can then decouple this by making small adjustments. For external filters, make sure that the filter has 4 rubber feet on the bottom (except for the CPe1901/2 model with casters) and that it only comes into contact with the cabinet there. Place the filter next to or in front of the aquarium on a soft surface (e.g., a thick towel) to test it and make sure that the hoses do not come into contact with the base cabinet. Many aquarium cabinets act like the sound box of a guitar with a sound hole. Even the smallest noises are amplified by the hollow body. Therefore, a soft surface and, if necessary, side insulation are advantageous if the resonance is amplified. Hoses lying on top or very rigid installations with additional attachments have the same effect. The test with the filter outside the cabinet, as described above, provides information about the actual operating noise. Loud running noises are caused by a worn rotor, excessive load on the rotor due to a reduction in performance (contamination or throttling), and too little height difference between the water surface and the filter head, as described in the instructions. Another possibility is that CO2 sucked in from the fertiliser system or air from the diaphragm pump, which is fed in near the filter, causes loud running noises.
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Can the filter be placed next to the aquarium?
No, this is not usually possible. Otherwise, air will be sucked in and the water will stop flowing. The filter will not work properly. When installing next to the aquarium, there should be a distance of at least 20 cm between the water surface and the top edge of the filter. If the filter is placed in the aquarium cabinet, the height difference between the water surface and the bottom of the filter must not exceed 180 cm (120 cm for e402).
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Why do the locking clips have a textured surface?
A further development of the locking clip provides even greater stability. The locking clip on the CristalProfi external filter is made of fiber-reinforced plastic to ensure greater stability. This can be easily recognized by the slight fiber structure on the surface.
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