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Oso Potable Vessel 5.3L

Miscellaneous Cylinder

Oso Potable Vessel 5.3L

Oso 5.3 litre potable vessel, supplied as a cylinder spare for potable water systems.

Manufacturer part no.
HRP0509
Showing prices

£155.30

£129.42 ex. VAT · VAT at 20%

Available to order · 1-2 working days
Available to order · 1-2 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Oso 5.3l Potable Vessel is a cylinder spare from the Oso range, listed under the Miscellaneous Cylinder Spares cylinder spares category. It is a potable water vessel with a 5.3 litre capacity. It is supplied as a component for Oso cylinder installations.

Signs this part needs replacing

  • The pressure relief valve on the potable water system discharges during heating cycles
  • System pressure swings widely between cold and hot states
  • The vessel feels heavy or waterlogged when the system is depressurised
  • Water is visible at the vessel connection or from the vessel body
  • System pressure needs frequent topping up

Before you order

  • Confirm the vessel being replaced has a 5.3 litre capacity
  • Check that the vessel serves a potable water system and not a sealed heating circuit
  • Inspect the existing connections and mounting arrangement before ordering
  • Verify the vessel location is accessible for removal and refitting

Not sure which part?

Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.