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Baxi Return Adaptor 243133

Baxi

Baxi Return Adaptor 243133

Baxi 243133 return adaptor for Baxi Combi HE and Potterton Gold/Promax FSB combi boilers; GC number E78-748.

At a glance

  • Part type: Adaptors and connectors
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
243133
GC number
E78-748
Showing prices

£45.60

£38.00 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 Baxi 243133 is a return adaptor used in the hydraulic circuit of Baxi and Potterton combi boilers. It provides the connection point where the heating return pipework meets the internal components of the appliance, forming a secure joint. Baxi supplies it as a spare for the Combi HE range and the associated Potterton Gold and Promax FSB models.

Signs this part needs replacing

  • Weeping or dripping at the return connection
  • Damp staining, corrosion or limescale around the pipe joint
  • Falling system pressure that needs frequent topping up
  • Visible cracking, distortion or damaged threads on the adaptor
  • Debris or scale restricting flow through the return connection

Before you order

  • Confirm the GC number on the appliance data badge matches one of those listed above.
  • Check the model and serial number against the compatibility list before ordering.
  • Have a replacement sealing washer or O-ring to hand if the existing seal is disturbed.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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