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Baxi Cap Adaptor Pack 7809931

Baxi

Baxi Cap Adaptor Pack 7809931

Cap adaptor pack with O-rings for Potterton Commercial Gold and Baxi Quinta Ace flue assemblies, part 7809931.

At a glance

  • Part type: Flue assembly — cap adaptor pack
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
7809931
Showing prices

£17.16

£14.30 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 7809931 is a cap adaptor pack supplied with O-rings, listed by the manufacturer as a flue assembly component. It forms the sealed junction at the flue cap on Potterton Commercial and Baxi commercial appliances, holding the cap in position and keeping the flue joint gas-tight so products of combustion leave the appliance through the intended route. The O-rings in the pack provide the sealing face at that joint.

Signs this part needs replacing

  • Cracking, distortion or corrosion visible on the cap adaptor body
  • O-rings flattened, hardened or perished, leaving the flue joint unsealed
  • Flue gas readings drifting from the expected values at the terminal
  • Condensate or water tracking around the flue cap
  • The cap no longer seating squarely or securely on the flue assembly

Before you order

  • Confirm the appliance model and serial number against the compatibility list before ordering
  • Inspect the existing cap adaptor and O-rings so the replacement matches what is currently fitted
  • 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.