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Potterton Inspection Flange 5139858

Potterton

Potterton Inspection Flange 5139858

Inspection flange for Potterton Commercial NXR4I series gas boilers.

Manufacturer part no.
5139858
Showing prices

£2.40

£2.00 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 5139858 is an inspection flange for Potterton Commercial NXR4I series gas boilers. It is a boiler component that provides an inspection point on the appliance assembly. It is manufactured by Potterton Commercial.

Signs this part needs replacing

  • Visible cracking, distortion or damage to the flange
  • Corrosion or pitting on the flange face
  • A leak or weep from the flange joint
  • Difficulty achieving a seal when the flange is refitted

Before you order

  • Confirm your boiler is a Potterton Commercial NXR4I model listed in the Fits section.
  • Check the section count of your appliance matches the relevant model listed.
  • Compare the existing inspection flange against part number 5139858 before ordering.
  • Confirm whether a gasket or seal is required for the joint, as this is not specified in the available data.

Not sure which part?

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