Description
The 125mm Inline Filter Box with EU3 Filter Media is a duct-mounted filter housing that fits within a run of 125mm ducting, supplied complete with EU3 grade filter media.
An in-line filter box protects everything downstream of it: fans, heat exchangers, valves and the rooms the system serves. Fitted on the intake side of a supply system it strips dust and airborne particles from incoming air; fitted in an extract run it keeps the fan and ductwork cleaner for longer. The box connects into standard 125mm ducting at each end, and the media can be accessed for inspection and replacement as part of routine maintenance.
Key features
- 125mm connections for direct installation into 125mm duct runs
- Supplied with EU3 grade filter media
- Protects fans and downstream equipment; improves supply air quality
- Media accessible for inspection and replacement
- Available in sizes from 100mm to 315mm
This item is normally held in stock — order by 3pm for next-working-day dispatch, and delivery is free to UK mainland addresses on orders over £400 ex VAT.
Delivery Information
In StockNext Day Delivery — order before 3pm Monday to Friday for dispatch the same day.
Delivery Options
| Service | Estimated Delivery | Cost |
|---|
| Standard Delivery (UK mainland) | Next working day from dispatch | £15.95 +VAT (£7.95 for small items) |
| Free Delivery | Next working day from dispatch | Free on orders over £400 ex VAT |
| Click & Collect | Collect from our Leicester branch | Free |
| Scottish Highlands & Islands | 2-3 working days from dispatch | £36.95 +VAT |
Delivery Area
We deliver to all UK mainland addresses. Scottish Highlands and Islands deliveries may take a little longer. We are not currently delivering to Northern Ireland — Click & Collect remains available.
Questions about delivery? Call us on 0116 246 0031 or email sales@alphaair.co.uk
Returns Policy
Six-Week Returns — No Restocking Fees
We want you to buy with confidence. You can return any standard stocked item within six weeks (42 days) of delivery for a full refund — 100% of the item price, no restocking or handling fees. Trade and business customers get exactly the same rights as retail customers. See our Returns Policy for full details.
Return Conditions
- Items must be unused and in original packaging
- Custom-made, bespoke or powder-coated items are made to your specification and cannot be returned unless faulty
- Items must be returned with proof of purchase
- Return shipping costs are the responsibility of the customer unless the item is faulty
How to Return
- Contact our customer service team to arrange a return
- Pack the item securely in its original packaging
- Include your order number and reason for return
- Ship the item to our returns address
Faulty Items
If you receive a faulty or damaged item, please let us know as soon as possible — ideally within 48 hours of delivery, so we can claim against the courier on your behalf. We will arrange a free collection and send a replacement or issue a full refund. This does not affect your statutory rights.
Questions? Contact us at sales@alphaair.co.uk
