Glowworm Betacom Expansion Vessel 24C/30C 7 Litre – Refurbished | MPN 0020061657

Stable water pressure is the foundation of a safe and smoothly running heating system — and the Glowworm Betacom Expansion Vessel (MPN 0020061657) is the component that maintains it. As your boiler heats up and water expands within the sealed circuit, this vessel absorbs the resulting pressure changes, protecting internal components from the ongoing strain that leads to leaks, lockouts, and costly breakdowns.

With a 7-litre capacity and a precise fit for the Glowworm Betacom 24C and 30C, this part restores the correct pressure balance to your system as a direct like-for-like replacement — no modifications, no complications, just reliable performance from day one.

This is a professionally refurbished genuine Glowworm component, tested for quality and reliability before dispatch to ensure it delivers safe, consistent heating system performance throughout every cycle.

GC Number:

Restore Efficiency. Prevent Costly Breakdowns.

Every unit is tested for quality and reliability to confirm it maintains safe water pressure and performs consistently under real operating conditions. The result is a dependable, cost-effective replacement that restores boiler efficiency, extends your system's lifespan, and helps prevent the kind of pressure-related faults that lead to expensive repairs. Backed by a full 12-month warranty, it offers the security and peace of mind you'd expect from a quality replacement part — at a fraction of the cost of buying new.

Delivery & Returns

Orders placed before 3:00 PM are dispatched the same working day via reliable couriers, with both standard and next working day delivery options available at checkout. Returns accepted within 30 days, provided the part is unused and in its original packaging.

Note Please confirm that MPN 0020061657 matches your existing part before placing your order. Installation must always be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.