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Expansion Vessel Compatible with Vaillant Ecotec 181051 | 10L | All Models

Original price £54.79 - Original price £54.79
Original price
£54.79
£54.79 - £54.79
Current price £54.79

Expansion Vessel Compatible with Vaillant Ecotec 181051 — 10 Litres

Aftermarket replacement expansion vessel compatible with Vaillant Ecotec sealed heating systems. This 10-litre rectangular vessel absorbs water expansion during heat-up to maintain stable system pressure, prevent PRV discharge, and protect the heat exchanger from damage. Supplied with washer for installation.

Note: This is an aftermarket compatible part, not a genuine Vaillant OEM component. Must be fitted and pre-charged by a Gas Safe registered engineer.

Key Features

  • Compatible with Vaillant part reference 181051
  • 10-litre capacity — rectangular design
  • 3/8" connection
  • Absorbs water expansion to maintain stable system pressure
  • Prevents PRV discharge and protects heat exchanger
  • Supplied with washer for installation
  • Compatible with ecoTEC Plus, ecoTEC Pro, and ecomax models

Technical Specification

Compatible Part Ref 181051 (Vaillant)
Type Aftermarket compatible
Capacity 10 litres
Form Factor Rectangular
Connection 3/8"
Dimensions H 435mm × W 250mm × D 100mm (approx.)
Compatibility ecoTEC Plus (824, 831, 837, 937), ecoTEC Pro (24, 28), ecomax VU/VUW
Included Washer
Installation Gas Safe registered engineer required
🚚 Next-day delivery on orders placed before 3pm Mon–Fri
📍 Same-day click & collect — 24 Western Avenue, Acton W3 7TZ (Mon–Fri 7:30am–5:30pm · Sat 8am–1pm)
🚚 Free delivery on orders over £50

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