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Baxi Filling Loop 7875815

Baxi

Baxi Filling Loop 7875815

Baxi 7875815 filling loop for Aquaheat Hi/HWI 4/50 and 14/50 appliances.

At a glance

  • Appliance family: Aquaheat Hi/HWI
  • Also known as 1129452
Manufacturer part no.
7875815
Showing prices

£144.80

£120.67 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 Baxi 7875815 is a filling loop used on Baxi Aquaheat Hi/HWI appliances. It connects the mains cold water supply to the heating circuit so the sealed system can be topped up and brought back to its correct operating pressure. The assembly is a serviceable component and is replaced when the valve no longer seals or the loop cannot be isolated.

Signs this part needs replacing

  • System pressure will not hold and drops repeatedly with no other obvious cause
  • Water weeping or dripping from the filling loop body or its connections
  • The valve handle turns but does not shut off the water supply
  • The loop cannot be isolated once the system has been topped up
  • Stiff, seized or rounded valve spindle that will not operate cleanly

Before you order

  • Confirm the appliance model matches one of the fitment entries listed above
  • Check the part number on the existing component against 7875815
  • Compare the valve connections and orientation with the existing loop before removal

Not sure which part?

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