ATAG Boiler Expansion Vessel Replacement 12L MPN S1095900

Description

Expansion Vessel For ATAG Boiler S1095900

The ATAG boiler expansion vessel replacement (part number S1095900) is a refurbished 12-litre unit designed to manage pressure fluctuations in your central heating system. This part ensures your boiler runs smoothly by absorbing excess pressure and preventing leaks or system damage. Our engineering team fully tests and quality-checks each unit, making it a reliable and cost-effective alternative to a brand-new part.

This refurbished expansion vessel offers outstanding performance and includes a 12-month warranty, giving you peace of mind with every installation.

ATAG Expansion Vessel Compatibility

This expansion vessel fits several ATAG boiler models, including:

ATAG A320S (GC: 41-310-17)
ATAG A325C (GC: 47-310-17)
ATAG A325ECX (GC: 47-310-18)
ATAG S-HR 15
ATAG S-HR 24
ATAG S-HR 24T
ATAG S-HR 35
ATAG S-HR 35T
ATAG S-HR 51T
ATAG E32C (GC: 47-310-14)
ATAG E32S (GC: 41-310-13)
ATAG E-SHR 35T
ATAG Q25C (GC: 47-310-10)
ATAG Q25S (GC: 41-310-08)
ATAG Q38C (GC: 47-310-11)
ATAG Q38S (GC: 41-310-09)

Why Choose This Product?

This expansion vessel ensures safe boiler operation by absorbing pressure surges and maintaining system balance. Our engineers refurbish each unit to strict standards, and we include a 12-month warranty for long-term peace of mind. Save money and reduce waste with a high-quality, tested replacement part.

Looking for more spares? Explore ATAG boiler parts here.

Delivery and Return

Place your order before 1:00 p.m. (Monday–Friday) to receive same-day dispatch. Select your preferred delivery option at checkout: standard (2–3 working days), next-day delivery, or Saturday delivery. Weekend orders ship on the next working day.

If you’re not completely satisfied or no longer need the part, return it within 30 days. Make sure the item is in its original condition and packaging. For non-faulty returns, the buyer covers the return shipping cost.

Thank you for purchasing the ATAG boiler expansion vessel replacement S1095900. For the safest results, always ask a Gas Safe registered engineer to handle installation.