Your pump arrives ready to connect: a brass barbed outlet, a matching hose, and a plastic manifold, so you can run several airlines from one pump on standard 4 mm tubing.
| Model | Max. flow | Max. pressure | Manifold outlets |
|---|---|---|---|
| ACO208 | 35 L/min | 0.15 bar | 6-way |
| ACO308 | 45 L/min | 0.18 bar | 6-way |
| ACO318 | 60 L/min | 0.2 bar | 6-way |
| ACO328 | 70 L/min | 0.3 bar | 6-way |
| ACO388D | 80 L/min | 0.3 bar | 8-way |
| ACO009E | 140 L/min | 0.35 bar | 16-way |
| ACO300A | 240 L/min | 0.4 bar | 20-way |
| ACO500 | 275 L/min | 0.45 bar | 26-way |
- Reciprocating piston mechanism - no diaphragm to wear out or replace
- Oil-less, oil-free air delivery - safe to use directly in aquariums, ponds and hydroponic reservoirs
- Washable sponge inlet filter - the only maintenance it needs is a quick clean every two months
- ZL 102 aluminium alloy housing with cooling fins - built to run continuously without overheating
- CE marked
- 1 year warranty - against manufacturing defects
Can I use it outside?
They are not IP rated. Avoid siting the pump itself outdoors if possible. Otherwise protection from weather, dust and moisture should be provided with a suitable enclosure in a sheltered spot. Plenty of space and ventilation is required to prevent heat build-up. Always use an electrical supply installed by a qualified electrician.
Is it noisy?
Yes, these powerful pumps are noisy compared to diaphragm type pumps. They are quieter under load than they sound when you first unbox one and run it with nothing connected.
Can water flow back up the pipe to the pump?
Yes, and it will damage the pump. Back syphoning is a risk whenever the pump can sit at or below the water level, in which case non-return valves are essential to protect it. Site it above the water line and fit a non-return valve to the airlines. Inexpensive valves are available separately in our shop.
What happens if I run it with outlets closed, or with no load?
Never run it with no load, and never shut off all the outlets at once. Both shorten the life of the pump.
Does it need oiling?
Unlike a workshop compressor there is no oil level to check or top up. These pumps are oil-less by design, which is what keeps the delivered air clean enough for a tank or a nutrient reservoir.
Can I service it myself?
Clean the sponge inlet filter every two months, with the pump unplugged. There are no other user-serviceable parts.
Does it have a warranty?
1 year against manufacturing defects.
Do I have to use a manifold and 4 mm pipe?
No, you can make connections to the threaded outlet, brass nozzle or over the top of the pump outlet - see the Connections table below.
What else do I need to buy?
You may need airline and air stones - we stock these, along with manifolds and other accessories, in our shop.
| Model | Power consumption | Noise |
|---|---|---|
| ACO208 | 18 W | <55 dB |
| ACO308 | 22 W | <60 dB |
| ACO318 | 32 W | <60 dB |
| ACO328 | 50 W | <60 dB |
| ACO388D | 70 W | <60 dB |
| ACO009E | 112 W | <60 dB |
| ACO300A | 160 W | <60 dB |
| ACO500 | 175 W | <60 dB |
| Model | Outlet thread | Brass barb (ID) | Over-nozzle (ID) |
|---|---|---|---|
| ACO208 | 8 mm | 6 mm | 13 mm |
| ACO308 | 8 mm | 6 mm | 13 mm |
| ACO318 | 8 mm | 6 mm | 13 mm |
| ACO328 | 8 mm | 6 mm | 13 mm |
| ACO388D | 10 mm | 8 mm | 16 mm |
| ACO009E | 12 mm | 10 mm | 23 mm |
| ACO300A | 12 mm | 10 mm | 23 mm |
| ACO500 | 14 mm | 13 mm | 23 mm |
| Pump type | Reciprocating piston |
| Housing | ZL 102 aluminium alloy, finned |
| Lubrication | Oil-less - delivered air is oil-free |
| Voltage | 220–240 V, UK plug |
| Supply frequency | 50/60 Hz |
| Cable length | 1.3 m (approx.) |
| Manifold outlet size | 4 mm ID |
| Airline required | 4 mm standard airline |
| IP rating | None |
| Certification | CE marked |
| Warranty | 1 year against manufacturing defects |
| Manufacturer | Guangdong Hailea Group Co., Ltd., China |
| 1 × ACO air pump | Model as selected |
| 1 × brass barbed connector | Sized to the model - see Connections table |
| 1 × connecting hose | Sized to match the connector |
| 1 × plastic manifold | Outlet count varies by model - see Choosing your model |
| Not included: airline tubing, air stones or diffusers, and inline valves, all available separately in our shop. | |
All stock is here in Dorset UK ready to go!
Your order will be carefully packed and dispatched within 24 hours of receiving payment (Monday to Friday). We try to dispatch quickly, so please let us know straight away if there is any extra information we need.
For next-day shipping orders, please allow one working day for dispatch, and be aware that next-day services typically operate on weekdays only.
We re-use packaging materials where possible and keep all orders discreet and carefully packed so everything reaches you safely.
The free shipping service used may differ from that shown, in order to offer the best available service and comply with carrier requirements.
International orders are managed through eBay's Global Shipping Programme, where additional shipping and import fees will apply.
Your satisfaction is really important to us, and we're always happy to help with any questions you have before or after your purchase. Please send us an eBay message and we'll get back to you as soon as we can.
To arrange a return, please open a case and follow the simple returns process to generate a shipping label, track progress, and manage your refund. Do get in touch if you have any questions about your order or the returns process.
We really want you to be happy with your purchase and will promptly put right any mistakes or faulty goods.
Please be aware that unwanted items must be returned in their original, unused condition, since we only sell new goods and cannot re-list returned items in anything other than new condition. Return postage is the buyer's responsibility.
We take product quality and safety seriously, and all our products meet applicable UK standards. Further compliance information is available on request.
Please always read the product instructions before use and follow all safety guidance. This is particularly important for electrical products, or any product used in or near water.
Our listings may describe uses and applications drawn from manufacturer guidance or common product use. These descriptions are provided for general information only. It is the responsibility of the buyer and end user to assess suitability for any specific application and to seek professional or specialist advice where appropriate. We make no warranty that any product is suitable for a particular purpose.
When you buy from us you are supporting a small family business based in Dorset UK and you can be sure that your order will be treated with heartfelt appreciation and gratitude.
We are eBay specialists in hydroponics, aquatics, irrigation and garden products, with a focus on quality, reliability and competitive prices. The Gardeners Wild brand has been trading on eBay since 2011.
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