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Charles Austen ET100 Linear Air Pump
Charles Austen ET100 Linear Air Pump
Charles Austen ET100 Air Pump
Charles Austen ET100 Air Blower 100 l/pm

Over 17,000+ Happy Customers

Charles Austen ET100 Air Blower 100 l/pm

£116.00

(exc VAT)
£116.00

(exc VAT)
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The Charles Austen ET100 Linear Diaphragm Air Pump is a high-quality, oil-free air pump designed to provide reliable and energy-efficient aeration for a wide range of applications. Engineered for continuous performance, the ET100 delivers a clean and consistent airflow, making it ideal for sewage treatment plants, wastewater systems, pond aeration, aquatic oxygenation, spas, and water features.

Featuring advanced linear diaphragm technology, the ET100 combines low power consumption with whisper-quiet operation, ensuring maximum performance while minimising running costs. Its compact, weatherproof construction makes it perfectly suited for outdoor installations, offering dependable operation even in demanding environments


Ideal Applications

  • Sewage treatment plant aeration
  • Septic tank and wastewater aeration systems
  • Pond and lake aeration
  • Aquatic oxygenation
  • Aquaculture and fish farming
  • Spas and whirlpool systems
  • Decorative water features

 

Specifications:

  • Flow (l/min): 100
  • Pressure (bar): 0.10
  • Noise level (DB): 40
  • Power Consumption: 85W
  • Weight (KG): 8.5
  • Dimensions (mm): 288 x 196 x 207
  • Outlet Size: 18mm

 

Key Features & Benefits

  • Advanced linear diaphragm air pump technology for efficient and reliable airflow
  • Oil-free operation delivers clean, contaminant-free air
  • Energy-saving Green Drive Technology reduces power consumption and operating costs
  • Specially formulated diaphragm material for extended service life
  • No performance loss caused by wearing internal components
  • Durable weatherproof and rainproof housing for outdoor use
  • Compact, robust design for easy installation and long-term reliability
  • Quick and simple servicing with competitively priced spares kits
  • Suitable for continuous duty and intermittent operation
  • Ultra-quiet performance, with noise levels as low as 35dB
  • Manufactured by Charles Austen, a trusted leader in aeration and air pump technology

 

Why Choose the Charles Austen ET100?

The Charles Austen ET100 Air Pump is a dependable solution for customers looking for a quiet, energy-efficient linear diaphragm air pump for sewage treatment, pond aeration, and wastewater oxygenation applications. Its low running costs, weatherproof design, and reliable airflow make it one of the most popular choices for both residential and commercial aeration systems.

 

Warranty information

Charles Austen recommends that all air pumps and systems are serviced annually. Although the air pump carries a 2-year manufacturer's warranty, diaphragms, valves and filters are consumable parts that naturally wear over time and should be replaced during routine servicing to maintain warranty compliance and ensure reliable operation.

Please note: Product images are for illustration purposes only and may vary slightly from the actual product supplied.

 

 Charles Austen ET Pump Technical Data

 

SKU: BLOBLOWCHA004

Agricultural Tanks Agricultural Tanks Agricultural Tanks

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CUSTOMER REVIEWS

Rated 4.8/5 by Direct Drainage Customers

Based on over 600 verified reviews

VERIFIED REVIEW

Very helpful from the start to the finish

Items were despatched quickly and arrived the next day. Would recommend.

Title

North Hayne Farm Cottages | 26 June 2026

VERIFIED REVIEW

Cheapest price I could find for the pump

Cheapest price I could find for the pump and delivery the next day what more could you want.

Title

Sam Jukes | 5 November 2025

VERIFIED REVIEW

Great service!

I ordered a septic tank it was delivered within a week and the delivery driver left it in the exact right place and time. Would definitely use this company again, thanks so much.

Title

Eve Harland | December 2025

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FAQs

Got questions? We’ve got the answer...

When will my order be dispatched?

Spare Parts Shipping
We ship in-stock spare parts the same day if ordered before 3pm. These orders are sent with DPD as standard and will be shipped on a Tracked Next-Day service.


Tanks & Supplier-Shipped Items

Tanks and certain spare parts are shipped directly from our suppliers. We aim to submit supplier orders to the supplier on the same day your order is placed to ensure prompt processing. 

How much is delivery?

Delivery costs vary depending on the type of product:

 

In-stock Spare Parts: £8.20 - shipped via DPD on a Tracked Next-Day service.
Supplier-shipped Spare Parts: £15 - dispatched directly from the supplier.
Tanks and Sewage Treatment Systems: Free Delivery to most mainland UK postcodes.

 

All delivery charges are calculated accurately at checkout.

I need help with placing my order.

No problem! Here are a few ways we can assist you:

Live Chat: Click the chat icon on the bottom right of the page to speak with our team instantly.
Call Us: Reach us at 01388 537050 during business hours for quick support.
Email: Send your query to sales@direct-drainage.co.uk, and we’ll respond promptly.

Do you stock all tanks and sewage treatment systems?

We do not stock tanks and treatment systems as standard. These are supplied directly from the manufacturer. The lead times of these systems will vary. If you need an accurate delivery date, please contact us on 01388 537050.

Are your prices inclusive of VAT?

It is important to note that all prices listed on our website exclude VAT. VAT will be calculated at checkout. 

I've found the same item somewhere cheaper, can you match the price?

We always aim to offer competitive pricing. If you've found the same item cheaper elsewhere, let us know — we'll do everything we can to match or even beat the price.

 

Contact us directly on 01388 537050 or drop us an email at sales@direct-drainage.co.uk.