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Vaillant Tube 0020233894

Vaillant

Vaillant Tube 0020233894

Vaillant tube 0020233894 for VUW 356/5-7 and VUW 436/5-7 combi boilers, including Ecotec Exclusive models.

At a glance

  • Also known as 1388296
Manufacturer part no.
0020233894
Showing prices

£14.95

£12.46 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

This is a Vaillant tube, part number 0020233894, used within the VUW 356/5-7 and VUW 436/5-7 combi boiler range. It forms part of the internal pipework assembly, carrying water between components inside the appliance. It is listed by Vaillant under the Ecotec Exclusive family for the 2016 model year onwards.

Signs this part needs replacing

  • Visible water weeping or staining around the tube or its connections
  • Corrosion, pitting or surface deterioration on the tube wall
  • Scale build-up restricting flow through the tube
  • Discolouration or deformation indicating overheating
  • Water loss or pressure drop traced to the tube run

Before you order

  • Confirm the boiler model and variant against the fitment list above
  • Check the appliance's GC number matches your boiler's data badge
  • Inspect the failed tube and its connections to confirm the correct item is required
  • Verify the part number 0020233894 against the manufacturer's parts list for your appliance

Not sure which part?

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