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Potterton Foam Strip Closed Cell 10mm x 15mm 5142456

Potterton

Potterton Foam Strip Closed Cell 10mm x 15mm 5142456

Closed cell foam strip with a 10mm x 15mm section, used on Potterton Commercial Sirius 2 and Sirius 3 boilers.

Manufacturer part no.
5142456
Showing prices

£8.64

£7.20 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

A closed cell foam strip measuring 10mm x 15mm, supplied by Potterton for use on Potterton Commercial Sirius boiler appliances. It is a sealing and insulating strip, typically fitted between panels or casing components to close gaps and limit air leakage, vibration and heat loss around the appliance.

Signs this part needs replacing

  • The foam has compressed, hardened or crumbled and no longer seals the joint
  • Visible gaps or daylight between casing panels where the strip should sit
  • Foam has detached from the panel or lost adhesion along its length
  • The strip is torn, missing or has been removed during previous work
  • Increased draughts, noise or heat loss around the appliance casing

Before you order

  • Check the boiler model and variant against the fit list above
  • Confirm the existing strip section measures 10mm x 15mm before ordering
  • Inspect the full length of the joint, as more than one strip may be required
  • Verify the part number 5142456 matches the number on the appliance documentation

Not sure which part?

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