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Alpha seal 14.8mm x 8mm x 2mm (AFM34) 1.023993

Alpha

Alpha seal 14.8mm x 8mm x 2mm (AFM34) 1.023993

Genuine Alpha gasket/seal, 14.8mm x 8mm x 2mm (model code AFM34), for the Pro Tec Plus, Eco², E-Tec and InTec² boiler range, part number 1.023993.

At a glance

  • Also known as 1258749
  • This may be gas-related work; where it is, use a Gas Safe registered engineer
Manufacturer part no.
1.023993
Showing prices

£1.37

£1.14 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

This is a small sealing gasket, 14.8mm x 8mm x 2mm, used within the boiler's hydraulic or gas circuit on the Pro Tec Plus, Eco², E-Tec and InTec² platform. It is a genuine Alpha part, number 1.023993, referenced by the manufacturer's own code AFM34.

Signs this part needs replacing

  • Water, gas or condensate weeping from the joint the gasket seals
  • The gasket is visibly perished, flattened, cracked or has hardened with age
  • The boiler fails a tightness or leak check at the joint

Before you order

  • Match the gasket's dimensions against the one removed from your boiler
  • Isolate the relevant supply before removing the joint it seals
  • This may be gas-related work; where it is, use 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.