Dophin · Canister
C Series Canister Filter
- Flow
- 1,130–2,540 L/h
- Tank size
- up to 190 L
A 100 to 190 litre planted tank on a budget where you want room for plenty of your own media.
5 models
Boyu · Canister
Boyu EF / EFU Canister Filter
A no-frills external canister in six sizes, with shut-off valves built into the in and out ports so you can disconnect it for cleaning without draining hoses. The EFU versions are the same bodies with a 5 W UV lamp added. Flow ratings are modest, so treat the maker's tank ranges as generous.
Updated
300–1,100 L/h6 models
Will it suit my tank?
litres
Best for
Budget-minded keepers with 100 to 650 litre tanks who want canister filtration and optional UV.
Worth knowing
The rated tank ranges are optimistic for a planted tank; size up if you want strong circulation.
What stands out
- Six sizes rated 300 to 1,100 L/h
- Integrated shut-off valves on the head
- Four-clip lid with seal
- EFU models add a 5 W UV lamp
- Rubber feet to damp vibration
Models and specs
| Model | Flow | Tank size | Power | Dimensions (L × W × H) | EFU power |
|---|---|---|---|---|---|
| EF-10 / EFU-10 | 300 L/h | 100–300 L | 11 W | 22.3 × 22.3 × 30.4 cm | 16 W incl. UV |
| EF-15 / EFU-15 | 350 L/h | 150–350 L | 13 W | 22.3 × 22.3 × 35.4 cm | 18 W incl. UV |
| EF-20 / EFU-20 | 400 L/h | 200–400 L | 15 W | 22.3 × 22.3 × 40.4 cm | 20 W incl. UV |
| EF-25 / EFU-25 | 750 L/h | 250–450 L | 22 W | 29 × 29 × 38.7 cm | 32 W incl. UV |
| EF-35 / EFU-35 | 950 L/h | 350–550 L | 24 W | 29 × 29 × 44.5 cm | 34 W incl. UV |
| EF-45 / EFU-45 | 1,100 L/h | 450–650 L | 26 W | 29 × 29 × 44.5 cm | 36 W incl. UV |
- Brand
- Boyu
- Voltage
- AC 230/115 V, 50/60 Hz
- Valves
- Built-in taps on inlet and outlet
- Variants
- EF (standard) or EFU (with 5 W UV)
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
Dophin · Canister
CF Series UV Canister Filter
- Flow
- 410–3,000 L/h
- Tank size
- up to 500 L
Anyone wanting a cheap canister with optional UV, from a 40 litre shrimp tank (CF300) to a large display (C2400).
7 models
Dophin · Canister
CF11008 Series CO2 Canister Filter
- Flow
- 950–1,450 L/h
- Tank size
- up to 140 L
A budget planted tank of roughly 60 to 140 litres where you want CO2 and heating hidden inside the filter.
3 models
Dophin · Canister
CF2000 Pre-Canister Filter
A planted tank with lots of leaf litter or trimmings where you are tired of stripping down the main canister.
1 model
Frequently asked questions
Quick answers about the Boyu EF / EFU Canister Filter, drawn from its specs.
What size tank is the Boyu EF / EFU Canister Filter good for?
Using the 5 to 12 times turnover rule for planted tanks: EF-10 / EFU-10 (300 L/h, suits roughly 25–60 L); EF-15 / EFU-15 (350 L/h, suits roughly 29–70 L); EF-20 / EFU-20 (400 L/h, suits roughly 33–80 L); EF-25 / EFU-25 (750 L/h, suits roughly 63–150 L); EF-35 / EFU-35 (950 L/h, suits roughly 79–190 L); EF-45 / EFU-45 (1,100 L/h, suits roughly 92–220 L). The maker rates the range for tanks up to 650 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 Boyu EF / EFU Canister Filter best for?
Budget-minded keepers with 100 to 650 litre tanks who want canister filtration and optional UV.
Is there anything to watch out for with the Boyu EF / EFU Canister Filter?
The rated tank ranges are optimistic for a planted tank; size up if you want strong circulation.
What are the alternatives to the Boyu EF / EFU Canister Filter?
Other filters worth comparing: Dophin C Series Canister Filter, Dophin CF Series UV Canister Filter, Dophin CF11008 Series CO2 Canister Filter. Add any of them to the compare table to see the specs side by side.