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Potterton Seal For Air Vent 986311

Potterton

Potterton Seal For Air Vent 986311

Potterton air vent seal, part 986311, for sealing the air vent connection on Potterton Commercial Paramount boilers.

Manufacturer part no.
986311
Showing prices

£9.60

£8.00 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 Potterton Seal for Air Vent (986311) is a sealing component for the air vent assembly on Potterton Commercial boilers. It sits at the air vent connection to keep the joint fluid-tight and prevent air or water escaping. The part is also listed as a cuff for air vent.

Signs this part needs replacing

  • Water weeping or dripping from the air vent connection
  • Visible cracking, hardening or deformation of the seal
  • Scale or corrosion build-up around the vent joint
  • Air being drawn in at the vent connection, indicated by noise or poor system performance
  • Seal flattened or displaced from its seating after removal

Before you order

  • Confirm the part number 986311 matches the air vent component on the appliance
  • Check the boiler model against the fit list, including the output rating
  • Inspect the vent assembly for damage beyond the seal before fitting
  • Isolate and drain the appliance as required before removing the air vent

Not sure which part?

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