Dophin · Water / return pump
AA Series Submersible Pump
- Flow
- 300–4,300 L/h
- Power
- 4.3–125 W
A sump return or water-transfer pump where you need decent head height for the money.

Boyu · Water / return pump
Tall, narrow submersible pumps with a long intake tube, built to sit upright in a corner or on an undergravel uplift. Three sizes from 740 to 1,565 L/h with up to 2.4 m of head.
Updated
Undergravel plates, sump returns or DIY top filters that need decent head in a narrow space.
| Model | Flow | Max head | Power | Dimensions (L × W × H) |
|---|---|---|---|---|
| PGB-750 | 740 L/h | 1.2 m | 12.5 W | 9.6 × 4.7 × 33.3 cm |
| PGB-1000 | 960 L/h | 1.7 m | 15 W | 11.1 × 5.4 × 34.4 cm |
| PGB-1500 | 1,565 L/h | 2.4 m | 28 W | 12.3 × 6 × 33.5 cm |
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.
Dophin · Water / return pump
A sump return or water-transfer pump where you need decent head height for the money.
Dophin · Water / return pump
A sump return on a large tank where turning the flow down precisely matters more than raw price.
Dophin · Water / return pump
Driving a DIY filter, a sump return or a water-change setup on a budget.
Dophin · Water / return pump
Driving a top filter or giving an old-school tank extra flow.
Quick answers about the Boyu PGB Series Submersible Pump, drawn from its specs.
Undergravel plates, sump returns or DIY top filters that need decent head in a narrow space.
Other pumps worth comparing: Dophin AA Series Submersible Pump, Dophin ECO DC Variable Pump, Dophin P Series Submersible Pump. Add any of them to the compare table to see the specs side by side.
3 options: PGB-750, PGB-1000, PGB-1500.
Tap Compare on this page and on any other 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.