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Worcester Bosch Flow Restrictor 25 Litre 8716118468

Worcester Bosch

Worcester Bosch Flow Restrictor 25 Litre 8716118468

Worcester Bosch 8716118468 25 litre flow restrictor for Greenstar Heatslave II and Greenstar Highflow models, limiting water flow through the appliance circuit.

At a glance

  • Part type: Flow regulator / restrictor
  • Also known as 2245081
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
8716118468
GC number
H66-928
Showing prices

£24.62

£20.52 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 Worcester Bosch 8716118468 is a 25 litre flow restrictor used in the manufacturer's domestic heating and hot water appliances. It sits in the water circuit and limits the volume of water passing through to the rated figure, keeping flow within the range the appliance is designed to work at. It is catalogued as a flow regulator and is used across a number of Greenstar Heatslave II and Greenstar Highflow models.

Signs this part needs replacing

  • Hot water flow rate noticeably below the appliance's rated output
  • Flow that varies between outlets, or drops when a tap is opened elsewhere
  • Scale or debris collected around the restrictor, narrowing the bore
  • Water passing at a higher rate than the 25 litre rating, upsetting temperature control
  • Weeping or leaks at the restrictor seating

Before you order

  • Check the GC number and the appliance serial plate to confirm the model before ordering.
  • Compare the part number against any markings on the old component, including 2245081, 8-718-681-198-0 and 87186811980.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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