Boyu · Water / return pump
FP Series Submersible Pump
- Flow
- 300–1,350 L/h
- Power
- 5–19 W
Adding gentle, spread-out circulation to a medium tank or powering a simple internal filter.
4 models
SunSun · Water / return pump
SunSun HJ-41 Series Submersible Pump
A long-running line of compact AC submersible pumps from 400 to 3,000 L/h, with a round intake cover. Useful for powering a DIY filter, a return from a small sump or a water-change setup.
Updated
400–3,000 L/h5–65 W7 models
Will it suit my tank?
litres
Best for
Small sumps, DIY filters and general water moving.
Worth knowing
Older AC design, so power use is high for the flow on the bigger models; DC pumps are quieter and adjustable.
What stands out
- 400 to 3,000 L/h
- 5 to 65 W
- 0.8 to 3 m head
- 110 to 240 V versions
Models and specs
| Model | Flow | Max head | Power | Dimensions (L × W × H) | Outlet adapters | Cable |
|---|---|---|---|---|---|---|
| HJ-541 | 400 L/h | 0.8 m | 5 W | 6 × 5.6 × 5.8 cm | 11mm | 1.5m |
| HJ-741 | 600 L/h | 1 m | 8 W | 7.6 × 6.6 × 6.8 cm | 13mm | 1.5m |
| HJ-941 | 800 L/h | 1.3 m | 16 W | 8.2 × 7.3 × 7.5 cm | 13mm | 1.5m |
| HJ-1141 | 1,000 L/h | 1.6 m | 22 W | 9.2 × 8.2 × 8.5 cm | 15mm | 1.5m |
| HJ-1541 | 1,400 L/h | 2 m | 28 W | 10.2 × 9.8 × 10 cm | 18mm | 1.5m |
| HJ-1841 | 1,800 L/h | 2.5 m | 40 W | 10 × 10.6 × 10.8 cm | 18mm | 1.8m |
| HJ-2041 | 3,000 L/h | 3 m | 65 W | 14.8 × 11.5 × 12 cm | 22mm | 1.8m |
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
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Boyu · Water / return pump
PGB Series Submersible Pump
- Flow
- 740–1,565 L/h
- Power
- 12.5–28 W
Undergravel plates, sump returns or DIY top filters that need decent head in a narrow space.
3 models
Boyu · Water / return pump
SP-100 / SP-101 Series Powerhead
- Flow
- 300–1,850 L/h
- Power
- 4.5–35 W
Anyone needing a cheap general-purpose pump for circulation, a DIY filter or a small sump return.
9 models
Boyu · Water / return pump
SP-1000 Series Submersible Pump
- Flow
- 300–1,400 L/h
- Power
- 8–34 W
Small sump returns, DIY filters and general water moving jobs around the fish room.
5 models
Frequently asked questions
Quick answers about the SunSun HJ-41 Series Submersible Pump, drawn from its specs.
Who is the SunSun HJ-41 Series Submersible Pump best for?
Small sumps, DIY filters and general water moving.
Is there anything to watch out for with the SunSun HJ-41 Series Submersible Pump?
Older AC design, so power use is high for the flow on the bigger models; DC pumps are quieter and adjustable.
What are the alternatives to the SunSun HJ-41 Series Submersible Pump?
Other pumps worth comparing: Boyu FP Series Submersible Pump, Boyu PGB Series Submersible Pump, Boyu SP-100 / SP-101 Series Powerhead. Add any of them to the compare table to see the specs side by side.
What sizes does the SunSun HJ-41 Series Submersible Pump come in?
7 options: HJ-541, HJ-741, HJ-941, HJ-1141, HJ-1541, HJ-1841, HJ-2041.