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Potterton Inlet Pipe (FS50) 5142423

Potterton

Potterton Inlet Pipe (FS50) 5142423

Inlet pipe for Potterton Commercial Sirius 2 and Sirius 3 FS50 and FS70 boilers.

Manufacturer part no.
5142423
Showing prices

£46.80

£39.00 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Potterton inlet pipe (FS50), part number 5142423, is a replacement pipe assembly for the boiler inlet. It is supplied by Potterton Commercial for use on Sirius 2 and Sirius 3 commercial boiler models. The pipe carries water into the appliance and must remain sound to prevent leaks and loss of pressure.

Signs this part needs replacing

  • Visible water weeping or staining around the inlet pipe connections
  • Corrosion, pitting or scale build-up on the pipe surface
  • Cracks, splits or deformation in the pipe wall
  • Repeated loss of system pressure traced to the inlet pipework
  • Joints that will not seal after re-making

Before you order

  • Confirm the appliance model and that it is one of the Sirius 2 or Sirius 3 variants listed
  • Check the existing part number 5142423 against the component being replaced
  • Inspect the surrounding connections for damage that may also need attention
  • Isolate and drain the appliance before starting any work

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.