Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Boss Cold Water Inlet Valve 3 Bar (2 Port) HRP0281

Boss

Boss Cold Water Inlet Valve 3 Bar (2 Port) HRP0281

Boss cold water inlet valve rated at 3 bar with a 2 port configuration, for use on unvented cylinders.

Manufacturer part no.
HRP0281
Showing prices

£84.00

£70.00 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 Boss Cold Water Inlet Valve is a 3 bar, 2 port inlet control valve used on unvented hot water cylinders. It regulates the flow of cold mains water into the cylinder and forms part of the cylinder's inlet control group. It is listed by the manufacturer for the Boss Supastor and a wide range of Heatrae Sadia Megaflo Eco cylinder models.

Signs this part needs replacing

  • Water weeping or dripping from the valve body or its connections
  • Reduced or interrupted cold water flow into the cylinder
  • The cylinder fails to refill, so hot water runs out sooner than expected
  • Water discharging at the tundish or pressure relief outlet
  • Scale build-up, stiffness or a valve that will not seat or shut off cleanly

Before you order

  • Confirm the cylinder make, model and capacity against the manufacturer's parts list
  • Check the existing valve's pressure rating and port configuration match this 3 bar, 2 port part
  • Isolate the cold mains supply and depressurise the cylinder before removal
  • Check the condition of the surrounding pipework and connections before fitting

Not sure which part?

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