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Ferroli O-Ring 35100810

Ferroli

Ferroli O-Ring 35100810

Ferroli 35100810 O-ring, 9 mm x 3.5 mm, for sealing joints in compatible Ferroli gas boilers.

At a glance

  • Also known as 1210251
Manufacturer part no.
35100810
GC number
E23-836
Showing prices

£2.16

£1.80 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 Ferroli 35100810 is a 9 mm x 3.5 mm O-ring used in Ferroli gas boilers. It seals the joint where it is fitted, helping to prevent leakage from that connection. It replaces Ferroli code 800081.

Signs this part needs replacing

  • Water weeping or dripping from the joint
  • O-ring has hardened, flattened or cracked
  • O-ring shows perishing, swelling or deformation
  • Scale or corrosion deposits around the seal
  • Recurring pressure loss or leak at the connection

Before you order

  • Confirm your boiler model and GC number against the fitment list
  • Check the O-ring dimensions (9 mm x 3.5 mm) match the one removed
  • Verify the part number 35100810 against the manufacturer's parts list

Not sure which part?

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