Boyu · Mains
CJY Series Air Pump
- Air output
- 1–15 L/min
Anyone wanting adjustable aeration, from a nano sponge filter up to a multi-tank air line.

SunSun · Mains
Copper-motor air pumps with a shock-absorbing body and adjustable output, from 1.5 L/min to four outlets at 2.8 L/min each. Most can hang on a wall hook.
Updated
Sponge filters and air stones in small and mid tanks.
| Model | Air output | Outlets | Power | Dimensions (L × W × H) | Max pressure | Cable | Output |
|---|---|---|---|---|---|---|---|
| CT-101 | 1.5 L/min | 1 | 3 W | 12.5 × 6.3 × 5.2 cm | 15 kPa | 1.1m | – |
| CT-101B | 2.5 L/min | 1 | 3.5 W | 12.5 × 6.3 × 5.2 cm | 16 kPa | 1.1m | – |
| CT-201 | 1.5 L/min | 1 | 4 W | 13.3 × 7 × 6.6 cm | 12 kPa | 1.1m | – |
| CT-202 | 3 L/min | 2 | 4 W | 13.3 × 7 × 6.6 cm | 15 kPa | 1.1m | 2 × 1.5L/min |
| CT-402 | 5.6 L/min | 2 | 4 W | 17.3 × 8 × 7 cm | 16 kPa | 1.4m | 2 × 2.8L/min |
| CT-404 | 11.2 L/min | 4 | 8 W | 17.3 × 16 × 7 cm | 16 kPa | 1.4m | 4 × 2.8L/min |
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.
Boyu · Mains
Anyone wanting adjustable aeration, from a nano sponge filter up to a multi-tank air line.
Boyu · Mains
Budget aeration for one tank, or the S-4000B for a small rack of breeder tanks.
Boyu · Mains
Small to medium tanks running one or two sponge filters or air stones.
Boyu · Mains
Nano to medium tanks where a quiet, low-power pump is the priority.
Quick answers about the SunSun CT Series Air Pump, drawn from its specs.
Sponge filters and air stones in small and mid tanks.
Other air pumps worth comparing: Boyu CJY Series Air Pump, Boyu S Series Air Pump, Boyu SC Series Air Pump. Add any of them to the compare table to see the specs side by side.
6 options: CT-101, CT-101B, CT-201, CT-202, CT-402, CT-404.
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.