Dophin · Mains
AP1301 / AP1302 Air Pump
- Air output
- 1.6–2 L/min
- Tank size
- 40–200 L
Running one or two sponge filters in small to medium tanks.
2 models
Boyu · Mains
Boyu S Series Air Pump
An older, blue-shelled range with rubber diaphragms and no oiling needed. Single and twin outlet models, plus the S-4000B with four outlets and electronic control for multi-tank setups.
Updated
4–12.8 L/min4 models
Will it suit my tank?
litres
Best for
Budget aeration for one tank, or the S-4000B for a small rack of breeder tanks.
What stands out
- 4 to 4.2 L/min single, 2 x 4 L/min twin
- S-4000B: four outlets at 3.2 L/min each
- Low running power, 2.8 to 9 W
- Oil-free diaphragm design
Models and specs
| Model | Air output | Outlets | Power | Dimensions (L × W × H) | Pressure | Output |
|---|---|---|---|---|---|---|
| S-500 / S-500A | 4 L/min | 1 | 2.8 W | 11.6 × 7 × 5.6 cm | 0.010 MPa | – |
| S-1000 / S-1000A | 4.2 L/min | 1 | 3 W | 13.8 × 8 × 5.9 cm | 0.014 MPa | – |
| S-2000 / S-2000A | 8 L/min | 2 | 3 W | 16.3 × 10.5 × 8.8 cm | 0.012 MPa | 2 x 4 L/min |
| S-4000B | 12.8 L/min | 4 | 9 W | 20.6 × 14.9 × 9.6 cm | 0.012 MPa | 4 x 3.2 L/min |
- Brand
- Boyu
- Voltage
- AC 230/115 V, 50/60 Hz
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 air pumps
Dophin · Mains
AP1500 Air Pump
- Air output
- 0.6 L/min
- Tank size
- 30–60 L
A single small sponge filter or air stone in a nano tank.
1 model
Dophin · Mains
AP1501 / AP1502 Air Pump
- Air output
- 1.6–2 L/min
- Tank size
- 40–200 L
A sponge filter in a shrimp tank where you want to turn the bubbles down.
2 models
Dophin · Mains
AP2500 Air Pump
- Air output
- 0.8 L/min
- Tank size
- 30–60 L
Running a sponge filter in a shrimp or nano tank.
1 model
Frequently asked questions
Quick answers about the Boyu S Series Air Pump, drawn from its specs.
Who is the Boyu S Series Air Pump best for?
Budget aeration for one tank, or the S-4000B for a small rack of breeder tanks.
What are the alternatives to the Boyu S Series Air Pump?
Other air pumps worth comparing: Dophin AP1301 / AP1302 Air Pump, Dophin AP1500 Air Pump, Dophin AP1501 / AP1502 Air Pump. Add any of them to the compare table to see the specs side by side.
What sizes does the Boyu S Series Air Pump come in?
4 options: S-500 / S-500A, S-1000 / S-1000A, S-2000 / S-2000A, S-4000B.
How do I compare the Boyu S Series Air Pump with similar products?
Tap Compare on this page and on any other air pump you are considering, then open the compare table. It lines up every published spec side by side and lets you pick the size of each product.