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Fernox LS-X External Leak Sealer 50ml 61016

Fernox

Fernox LS-X External Leak Sealer 50ml 61016

Fernox LS-X external leak sealer in a 50ml format for sealing external leaks at heating system joints and fittings.

Manufacturer part no.
61016
Showing prices

£12.90

£10.75 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Fernox LS-X External Leak Sealer is a plumbing consumable from Fernox, classed as a plumbing consumable and supplied in a 50ml format. It is designed for use on external leaks at heating and plumbing joints and fittings.

Before you order

  • Confirm the leak is external and at an accessible joint or fitting before selecting a leak sealer.
  • Check the product description and manufacturer guidance to ensure it suits the materials and system you are working on.
  • Make sure the surface is clean and dry before application, as recommended for leak sealing products.

Not sure which part?

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