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Johnson & Starley 1000-0704600 Expansion Vessel 24 Litre

Johnson & Starley

Johnson & Starley 1000-0704600 Expansion Vessel 24 Litre

A 24 litre expansion vessel from Johnson & Starley for use in sealed gas boiler heating systems, part 1000-0704600.

At a glance

  • Also known as 1691419
Manufacturer part no.
1000-0704600
Showing prices

£370.78

£308.98 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 Johnson & Starley 1000-0704600 is a 24 litre expansion vessel from the Johnson & Starley spares range for its gas boilers. It absorbs the expansion of water as the system heats, limiting the pressure rise within a sealed heating circuit. The vessel is a service component intended for replacement when the existing vessel can no longer hold its charge or has failed.

Before you order

  • Confirm the part number 1000-0704600 matches the component being replaced.
  • Check that a 24 litre vessel is the correct capacity for the system or appliance.
  • Verify that the vessel is suitable for the Johnson & Starley boiler it is being fitted to.

Not sure which part?

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