Description
450mm Cap End with Mesh
Please note that product shown in the image is for illustration purposes only. The actual product supplied may differ in appearance, build or manufacturer.
Cap End with Mesh 450mm
Galvanised steel duct cap end with protective mesh screen. Cap End with Mesh 450mm seals duct ends while allowing airflow and preventing debris entry. Durable construction for long service life. Suitable for ventilation intakes and protected exhausts.
£47.48
20% VAT added at checkout
In Stock – Available for next day delivery
Order before 3pm today for delivery by Monday 14th September
Select Size
Frequently Asked Questions
What diameters of spiral ducting and fittings do you stock?
Our galvanised spiral ducting range runs from 80mm up to 1000mm diameter, with 24 standard sizes in between including 100mm, 150mm, 200mm, 250mm, 300mm and 400mm. Matching bends, T-pieces, Y-pieces, reducers, connectors and end caps are available across the same sizes. You can browse the range in metric or imperial sizes using the site’s shop-by-size categories, whichever convention your drawings use.
What length does spiral ducting come in?
All of our spiral ducting is supplied in 3 metre lengths, in every diameter from 80mm to 1000mm. For shorter runs, the duct can be cut down on site with standard metal-cutting tools and joined using male connectors. For longer runs, simply join multiple 3m lengths together with connectors, sealing each joint as you go.
How is spiral ducting measured — inside or outside diameter?
Spiral duct is sized by its internal diameter, so a 200mm spiral duct has a 200mm bore. Fittings such as bends, reducers and connectors are made with male ends that fit inside the duct, which is why a 200mm fitting slots straight into 200mm duct. When matching to an existing system, measure the inside of the duct rather than the outside.
How do I join spiral ducting and fittings together?
Push the male end of the fitting into the duct, fix it with self-tapping tek screws, then seal the joint with duct sealant or foil duct tape for an airtight finish. We stock tek screws, duct sealant, foil tape and gasket tape alongside the ducting. Support horizontal runs with split rings or suspension rings from our bracketry range at regular intervals.
What is galvanised spiral ducting used for?
Spiral ducting is the most common rigid ductwork for dust extraction, fume control, general ventilation and air conditioning. The galvanised steel construction is sturdy and long-lasting, and the full fittings range — bends, branches, reducers, access doors, silencers and terminations such as jet cowls and weather hats — lets you build a complete system from stock parts.
Are spiral ducting and fittings available for next-day delivery?
Yes — spiral ducting and standard fittings are stock items with next-day availability on most sizes; the exact lead time is shown on every product page. Delivery is free on orders over £400 excluding VAT, which most ductwork orders of any size reach comfortably. If you need help working out a parts list for your run, call us on 0116 246 0031.
Delivery Information
In Stock
Next 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
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