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Potterton 160mm Exhaust Port Seal 684385

Potterton

Potterton 160mm Exhaust Port Seal 684385

Potterton exhaust port seal, 160mm, part number 684385, for use with 125/170 models.

At a glance

  • Also known as 1128861
Manufacturer part no.
684385
Showing prices

£41.38

£34.48 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 Potterton 684385 is a 160mm exhaust port seal used on Potterton gas boilers in the 125/170 range. It seals the exhaust port connection, closing the joint between the flue outlet and the surrounding casing or ductwork. The seal is a consumable item and is listed under gas boiler spares.

Before you order

  • Confirm the part number 684385 against the boiler's data badge or the manufacturer's parts list for the appliance.
  • Check that the 125/170 model designation in the product name matches the boiler being worked on.
  • Verify the exhaust port seal size required is 160mm before ordering, as the seal is sized to the port.
  • Inspect the exhaust port and flue joint for condition and any other seals that may need attention at the same time.

Not sure which part?

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