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Grant Expansion Vessel Flexible Hose MPCBS79

Grant

Grant Expansion Vessel Flexible Hose MPCBS79

Grant MPCBS79 expansion vessel flexible hose for Grant Combi and Vortex Pro oil boilers.

At a glance

  • Also known as 2160436
Manufacturer part no.
MPCBS79
Showing prices

£26.64

£22.20 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Grant MPCBS79 is a flexible hose for the expansion vessel on Grant oil-fired combi and condensing boilers. It connects the expansion vessel to the boiler's water circuit, allowing the vessel to absorb pressure changes as the system heats and cools. It is a service part for the Grant Combi and Vortex Pro ranges.

Signs this part needs replacing

  • Visible weeping, damp staining or corrosion at the hose crimp or union
  • Pressure loss on the boiler gauge with no other leak found
  • Hose wall perished, cracked or hardened with age
  • Expansion vessel no longer holding charge, with the hose disturbed during diagnosis
  • Water tracking along the hose braid or fitting threads

Before you order

  • Confirm the boiler model and variant against the fitment list above
  • Check the hose unions and crimps for the source of the leak before ordering
  • Verify the expansion vessel itself holds its charge, as a failed vessel can mimic a hose fault
  • Have the system pressure released and the boiler isolated before removal

Not sure which part?

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