Boyu · Canister
DGN-410 / 460 / 520 Canister Filter
- Flow
- 1,610 L/h
Mid to large planted tanks where you want to tune flow to the scape without swapping filters.
6 models
Eheim · Canister
Eheim Professionel 4+
The Professionel 4+ is Eheim's mechanical flagship canister, with a lift-out prefilter under the head, separate media baskets and a self-priming pump. The Xtender button reroutes water past clogged fine pads so the biology keeps running until you get round to cleaning. The 250T and 350T versions add a 210 W heater inside the canister.
Updated
950–1,250 L/h5 models
Will it suit my tank?
litres
Best for
Planted tanks from about 120 to 600 litres where you want solid flow, long service intervals and, if you like, no heater in the display.
Worth knowing
It is a tall, fairly heavy canister, so measure your cabinet, and the thermo models are not for marine use.
What stands out
- Top prefilter catches debris so the main media stays cleaner for longer
- Xtender button buys a few extra days when flow starts to drop
- Thermo versions (250T, 350T) hide a 210 W heater in the filter, freshwater only
- 16/22 mm hoses on every model, with a safety tap adaptor
- Quiet ceramic shaft and adjustable flow
Models and specs
| Model | Flow | Tank size | Power | Media volume | Hose | Heater | Max head | Prefilter | Canister volume | Dimensions | Heater |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2502271 | 950 L/h | 120–250 L | 12 W | 3.5 L | 16 mm | – | 1.5 m | 0.5 L | 6.1 L | 23.8 x 35.8 x 24.4 cm (w x h x d) | – |
| 3502273 | 1,050 L/h | 180–350 L | 16 W | 5 L | 16 mm | – | 1.8 m | 0.5 L | 7.4 L | 23.8 x 39.8 x 24.4 cm (w x h x d) | – |
| 6002275 | 1,250 L/h | 240–600 L | 16 W | 6.5 L | 16 mm | – | 1.8 m | 0.5 L | 9.2 L | 23.8 x 45.3 x 24.4 cm (w x h x d) | – |
| 250T (thermo)2371 | 950 L/h | 120–250 L | 12 W | 3.5 L | 16 mm | 210 W | 1.5 m | 0.5 L | 7.1 L | 23.8 x 39.8 x 24.4 cm (w x h x d) | Built in, with display |
| 350T (thermo)2373 | 1,050 L/h | 180–350 L | 16 W | 5 L | 16 mm | 210 W | 1.5 m | 0.5 L | 8.9 L | 23.8 x 45.3 x 24.4 cm (w x h x d) | Built in, with display |
- Brand
- Eheim
- Hose size
- 16/22 mm
- Canister shape
- Square
- Water type
- Freshwater and marine (thermo models freshwater only)
- Media
- Supplied complete with Eheim media and fittings
Figures from the maker's published specifications. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Compare with
Browse all filters
Boyu · Canister
DGN-80 / 120 UVC Canister Filter
- Flow
- 800–1,200 L/h
Medium to large community tanks where the owner wants mechanical, biological and UV treatment in one box.
2 models
Boyu · Canister
EF / EFU Canister Filter
- Flow
- 300–1,100 L/h
- Tank size
- 100–650 L
Budget-minded keepers with 100 to 650 litre tanks who want canister filtration and optional UV.
6 models
Boyu · Canister
FEF-230 / 280 Canister Filter
- Flow
- 800–1,000 L/h
Medium tanks around 150 to 300 litres where a budget UV canister makes sense.
2 models
Frequently asked questions
Quick answers about the Eheim Professionel 4+, drawn from its specs.
What size tank is the Eheim Professionel 4+ good for?
Using the 5 to 12 times turnover rule for planted tanks: 250 (950 L/h, suits roughly 79–190 L); 350 (1,050 L/h, suits roughly 88–210 L); 600 (1,250 L/h, suits roughly 104–250 L); 250T (thermo) (950 L/h, suits roughly 79–190 L); 350T (thermo) (1,050 L/h, suits roughly 88–210 L). The maker rates the range for tanks up to 600 L. Real flow with media and hoses is lower than the rated figure, so pick the bigger model if you are between sizes.
Who is the Eheim Professionel 4+ best for?
Planted tanks from about 120 to 600 litres where you want solid flow, long service intervals and, if you like, no heater in the display.
Is there anything to watch out for with the Eheim Professionel 4+?
It is a tall, fairly heavy canister, so measure your cabinet, and the thermo models are not for marine use.
What are the alternatives to the Eheim Professionel 4+?
Other filters worth comparing: Boyu DGN-410 / 460 / 520 Canister Filter, Boyu DGN-80 / 120 UVC Canister Filter, Boyu EF / EFU Canister Filter. Add any of them to the compare table to see the specs side by side.