Silicone Tube Diffuser (500mm)


Product Ref: 0018214

1-3 Working Days Delivery

Home Delivery

UK mainland delivery from £6.50 ex VAT

check delivery cost

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Product Description

Silicone Tube Diffuser (500mm)

This silicone tube diffusers can be used in various applications from Sewage treatment tanks including Kingspan Bioficient Sewage treatment plants to pond aeration. They are intended for fine -bubble compressed air ventilation. The fine bubble aeration is suitable for the efficient treatment of wastewater treatment plants using the activated sludge process. These membranes are made of EPDM-rubber that makes intermitting operation possible due to the long-term elasticity of the membrane material.

Regular operation adjust airflow of diffusers to maintain the required oxygen level in the aeration tank. Keep airflow within recommended range of diffusers.

Airflow must not contain oil, dust or solvents.


  • Tube diameter - 63 mm
  • ID Sleeve - 65 mm
  • Wall thickness - 1.5 +/- 0.15 mm
  • Total Length -  580 mm






Our shipping costs cover most of the UK - however, parts of England, Scottish Highlands and Islands including areas north of the Glasgow / Edinburgh border, Isle of Wight, Channel Islands, Isle of Man, Anglesey, Western Isles, Shetland Islands, Orkney Islands, Isles of Scilly, Northern Ireland and the Republic of Ireland may cost more.

Please call before ordering if the delivery postcode is listed below. There may be additional shipping costs. AB, BT, CA, CT, DD, DG, EH, FK, G, GY, IM, IV, JE, KA, KW, KY, LD, LL, ML, PA, PH, PO 30-41 (Isle of Wight), SA, SY, TD, TN, TR, ZE Southern Ireland

Our lead times should only be used as a guide and are subject to change.


Unless a hi-ab delivery has been booked at additional cost, it is the customer's responsibility to offload with suitable equipment on the day of delivery and a failed delivery may result in additional charges.

We recommend installers and/or plant hire & materials to install such as excavators, aggregates etc are not booked until you are in receipt of the goods. Tanks Direct cannot be held responsible for costs incurred due to unforeseen delays, please see our terms for more details.


HIAB delivery will be required if you need the tank offloaded from the delivery vehicle. The driver will unload the tank from the vehicle to ground level, however this service is not to place the tank in situ, this will need to be arranged separately.

If you have any questions regarding your delivery, please contact the Sales Team on 01643 703358.

Returns Information

Please note - Certain items may not be returnable, for example those made to order or for sanitary reasons. Please check the product page for more information.

Customers may return items within 14 calendar days (as per our Terms & Conditions) - refer to section 7. **

All Items must be returned unused, refunds cannot be issued for used or previously installed items.

Please be aware that returning a tank can be complicated and expensive, so please check that you are ordering the correct item (we suggest checking the dimensions very carefully).

If you wish to return goods, please complete the form on this page to provide further information.

Once your request is approved, a valid Returns Authorisation Number (RAN) will be issued to initiate the returns process along with information on how & where to return your order along with any costs involved.

Please DO NOT return any goods without this authorisation. Goods cannot be accepted without this.

Returns are not accepted at our Minehead Office, please wait until we contact you before returning any goods.

View Tanks Direct's return policy now.

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