ET Air Pumps

As low as £74.95
In stock

In stock

Order in the next 00 hours, 00 minutes, 00 seconds for dispatch today.

  • Energy efficient motors, Low power consumption
  • Power up to 18 outputs with a Manifold (sold separately)
  • Robust and Reliable, will last for an extended life
  • No wearing parts - No reduction in performance
  • Compact construction

Keep your plants happy and improve their growth with this Charles Austen range of ET Air Pump. Aeration is essential in systems such as DWC but any garden will benefit from extra oxygen in the rootzone.

This pump's energy-efficient motor utilises Green Drive technology to reduce power consumption, so you'll spend less on your energy bills and do your bit for the environment too!

With efficient, impressive flow rates, this whisper-quiet pump operates quietly and has no wearing parts, which means you can expect to see no reduction in its performance even with continuous use.

Constructed of a hard-wearing diaphragm material for an extended life, this weatherproof pump is surprisingly compact, allowing you to make the most use out of your space.

The perfect pump for intermittent or continuous use, it's even affordable to service, with a value-for-money spares kit available to purchase.

With Charles Austen ET Air Pump's, you can provide air to up to 18 Airstones using an additional Steel Manifold you'll also need enough 4mm Air Line Tubing to run all the stones from the pump.

Each Charles Austen ET Air Pump Contains:

  • Charles Austen ET Air Pump
  • Brass Nozzle (for single output)
  • L-shape Rubber Connector (for manifold attachment)
  • 2 x Clip-rings (to secure the rubber connector)

Charles Austen Air Pump Model
Dimensions (cm) Max Draw
Air Flow
(Litres per minute)
ET30 Air pump
20cm x 15cm x 18cm 20 30 3.7
ET40 Air pump 22cm x 15.5cm x 19cm 30 40 4.3
ET60 Air pump
20cm x 16.5cm x 15.5cm 55 60 6
ET80 Air pump
21cm x 17cm x 18.5cm 85 80 7
ET120 Air pump
26.5cm x 21.5cm x 19cm 125 120 9.5

How to use:

Make sure you select a pump to suit the number of outputs. divide the output of the pump by the number of air stones you intend to power - this is the amount of air delivered to each air stone. Choose your Air Stone based on this number

Use a Nutrient Chiller to keep reservoir temperatures between 18 - 20°C, reducing chances of root rot and increasing the amount of oxygen that's able to be dissolved in the water.

Place Air Pumps higher than the waterline in your reservoir to prevent solution being drawn into the unit.

More Information
Brand Charles Austen
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Next Day Delivery

Our UK Mainland delivery service is provided by Parcelforce Worldwide.

NOTE: For anyone outside of the UK (i.e. Republic of Ireland and the EU) you are free to arrange your own courier service. To order from us using your own courier, complete your purchase from our website, and select "Collect from our Warehouse — Chigwell". This is where you can arrange your own courier to collect your item(s) from. Address details are available on the Contacts page.

Standard UK mainland orders over £50.00 are eligible for a free standard next working day delivery service (Mon – Fri)*.

  • *Free delivery includes orders up to, and not exceeding, 30kg, that fit in a single, standard shipping box.
  • *Free delivery may exclude orders containing one or more large volume items. Examples of large volume items are, but are not limited to, bags of media (clay balls, perlite, soil etc.).
  • *Free delivery excludes Garden Power Tools.
  • *Large items are sent via a standard 48L (48 hour large) service. Large items take from 2 working days to arrive.

Where possible, orders received by 2:30pm Mon – Fri are dispatched the same day. (*Excluding Garden Power Tools).

Where possible, Garden Power Tool orders are dispatched the same day when received by 11:00am Mon – Fri. Orders after 11:00am are usually dispatched the next working day

UK mainland orders after 2:30pm Mon - Fri are subject to next working day dispatch:

  • For example, orders after 2:30pm on a Friday are dispatched on the next working day, usually a Monday.

UK Mainland Pallet deliveries are charged separately per pallet. They are usually delivered in 2-3 working days. Please contact us for the latest cost price.

    Our shipping providers terms and conditions limit our ability to send some products internationally. See our list of restricted items.

    All prices shown below are per parcel with a maximum weight of 30 kg per parcel. Items over 30 kg are split into multiple boxes and charged per box.

    Future Garden are not liable for any additional fees that may be incurred. Any unexpected costs must be paid by you (the customer).

    Delivery services provided online are estimates. There may be unforeseen delays with your order, especially around our busiest time of year. Very busy periods can see very high volumes of parcels being collected, processed and delivered. If you have a special delivery requirement, please contact us via email - before placing your order.

    UK Mainland

    Standard Next Working Day (Orders over £50 <30 kg) FREE
    Standard Next Working Day (Orders under £50 max. 30 kg per parcel)* £6.95
    Standard 2-3 Working Day (Orders under £50 max. 30 kg per parcel)* £4.95
    Pallet Delivery £70.00

    Isle of Wight

    Next Day Service £8.95

    Northern Ireland

    Two Day Service £18.95

    Isle of Man & Scilly Isles

    Two Day Service £20.95

    Scottish Highlands & Islands

    Two Day Service £16.95


    Sorry, no online quotes are available for orders outside of Europe. If you would like to place an order for delivery outside of Europe, email us directly and we can prepare a bespoke quote for you based on the weight, dimensions and destination country for the most accurate cost and quickest delivery times to you.

As per the Consumer Contract Regulations June 2014, you can return goods and receive a full refund under the following conditions:

  • You have had the goods delivered within seven working days of delivery from Future Garden Ltd, this starts from the day after the goods have been signed for.
  • The items are unopened and in the original condition as when they were delivered to you.


  • The items have developed a fault during standard use.
  • The items are within the manufacturer's warranty period.

Simple checks

  • Please ensure that any parcels delivered are intact and free from damage and unopened, if they appear to show any damage please make a note when signing for the goods, alternatively you can refuse delivery of these items, however only full refusal if multiple parcels will be accepted, in the unlikely event this occurs please contact us asap on 020 8502 7722 or by email
  • Please check all items once unboxed to ensure that they are not damaged and are fully functioning, if this is not the case please ensure you notify us as soon as you can, or within the given returns policy time frame, on 020 8502 7722 or by email  we will then arrange suitable collection and replacements where necessary.
  • If any items appear not to be functioning as expected, do not attempt to fix or tamper with any products, this could affect your statutory rights, please notify us on 020 8502 7722 or by email and we will arrange a suitable replacement.
  • If you notice any irregularities with your order, please notify us as soon as possible or within 7 working days, on 020 8502 7722 or by email will endeavour to correct and refund where possible. 
  • You can return any unwanted items, you can return the item(s) to us unopened and intact in a re-sellable condition within 14 working days after the day of receiving the goods, we are unable to accept any goods back that have been opened or the seal(s) have been broken or have been damaged, unless reported as damaged in transit, you can contact us on 020 8502 7722 or by email