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Ariston Pipe Expansion Vessel 999105

Ariston

Ariston Pipe Expansion Vessel 999105

Expansion vessel pipe for Ariston Microcombi 23 MFFI boilers, part number 999105.

At a glance

  • Part type: pipe – expansion vessel
  • Appliance family: Microcombi 23 MFFI
  • Also known as 1577476
Manufacturer part no.
999105
Showing prices

£10.90

£9.08 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Ariston pipe for the expansion vessel, part number 999105, is a manufacturer component used on the Ariston Microcombi 23 MFFI appliance family. It forms part of the pipework connecting the expansion vessel within the boiler. It is listed for both LPG and NG versions of the Microcombi 23 MFFI.

Signs this part needs replacing

  • Visible corrosion, pitting or surface rust along the pipe
  • Weeping or damp staining at the pipe connections
  • Scale or debris build-up restricting flow through the pipe
  • Loss of system pressure that traces back to the expansion vessel pipework
  • Physical damage, kinking or deformation of the pipe

Before you order

  • Confirm your appliance is an Ariston Microcombi 23 MFFI
  • Identify whether your boiler is the LPG or NG variant
  • Check whether your appliance is Edition 1 or Edition 2
  • Inspect the existing pipe and connections to confirm the fault lies with this part

Not sure which part?

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