The Fastwarm® 16mm x 16mm Straight Coupling is a 3-piece compression connector designed specifically for joining two lengths of 16mm pipework. This fitting is ideal for use as a repair or extension coupling within an underfloor heating system, offering a reliable, leak-free solution.
For example, if you’re extending an existing 16mm pipe run or need to replace a damaged section, this straight coupling offers a quick and secure connection without the need for specialist tools.
- Secure 3-piece design – Provides a tight mechanical seal for durable and leak-free connections
- Precision-engineered for 16mm pipe – Ideal for extending or repairing Fastwarm® 16mm underfloor heating pipework
- Made to EU standards – Manufactured from quality materials to ensure long-term performance and reliability
This compact and essential fitting ensures system integrity and simplifies maintenance or extensions to existing installations.
Free Delivery as Standard!
As standard we include 2 - 3 working day delivery on all orders delivered to the UK mainland. * A £5 delivery charge will be applied to all orders below £20.
Delivery cut off times
Our final delivery time for Mondays to Thursday is 4:30pm. To give us a bit more time to ensure weekend deliveries are handled and our couriers have time to collect, the final delivery time on Fridays is 4:00pm.
Bank holidays may affect these delivery times, so please contact our team if unsure on 01268 744 479
2-3 working day delivery
Next working day
Next working day before 10:30
Saturday Delivery
* A £5 delivery charge will be applied to all orders below £20. Our delivery cut off time is 4pm on Fridays.
Other Delivery Options
Pre 10:30am and Saturday delivery services are available on orders placed before 4:30pm. Any order placed before 4:30pm on a Friday will be delivered on the following Monday (unless its a bank holiday) so please select a Saturday service if a weekend delivery is required.
Delivery outside the UK
Delivery outside the mainland UK may be arranged by prior agreement. You will be notified of the amount of the charge for this service and will at that point have to make a decision whether you wish to proceed wth your order.
Important: Our deliveries rely on third party couriers, so, whilst we make every effort to deliver your order on the specified date and time, unfortunately there may be occasions when this will not be possible due to external influences. Due to this we strongly recommend you ensure you have received your order before any tradespeople/builders are scheduled to commence work.
Still Unsure? Talk to an expert
If you need any guidance or further information our highly experienced team are on hand to help.
Get in touch using our contact form or give us a call on 01268 744 479.
