Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Remeha Hydroblock Return 720399401

Remeha

Remeha Hydroblock Return 720399401

Remeha 720399401 hydroblock return assembly for the return side of the boiler's hydraulic block.

At a glance

  • Also known as 2203904
Manufacturer part no.
720399401
Showing prices

£91.26

£76.05 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 Remeha 720399401 is a hydroblock return assembly used within Remeha gas boiler hydraulic blocks. It forms the return-side section of the hydroblock, carrying water back through the boiler's primary circuit. The part is supplied by Remeha under part number 720399401.

Before you order

  • Confirm the part number 720399401 against the number on the existing hydroblock component or the boiler's technical documentation.
  • Check the boiler model and hydraulic block variant to confirm this return assembly is the correct item for the installation.
  • Inspect the surrounding hydraulic block components and seals before fitting, since access to the return section usually requires partial strip-down of the block.
  • Verify that any associated gaskets, seals or retaining clips required for the job are ordered separately if they are not present on the existing assembly.

Not sure which part?

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