Ferroli
Ferroli O-Ring 35100430
22 mm O-ring for Ferroli gas boilers, sealing water-carrying joints; replaces code 806043.
At a glance
- Also known as 1210243
Showing prices
£2.22
£1.85 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 35100430 is a 22 mm O-ring, also listed as O-ring 3062 3/4 inch. It seals a water-carrying joint or connection in Ferroli gas boilers. The part replaces code 806043.
Signs this part needs replacing
- Weeping or dripping at the O-ring joint
- Visible cracking, flattening or hardening of the O-ring
- Water staining or corrosion around the sealed connection
- Repeated boiler pressure loss requiring top-up
- Scale or debris preventing the O-ring from sealing correctly
Before you order
- Check the appliance model and GC number against the Fits list.
- Confirm the existing O-ring is marked or measures as 22 mm / 3/4 inch where visible.
- Inspect the joint faces and surrounding component for damage or debris.
- Check whether any other seals or washers are needed for the same repair.
Compliance
| GC number | E05-948 |
|---|---|
| Alternative numbers | FER35100430, 1210243 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| FERROLI FERROLI HAWK 2 | — | — | — | |
| FERROLI FERROLI OPTIMA 1001 | — | — | — | |
| FERROLI FERROLI OPTIMA 2000 | — | — | — | |
| FERROLI FERROLI OPTIMA 2001 | — | — | — | |
| FERROLI FERROLI OPTIMA 201 | — | — | — | |
| FERROLI FERROLI OPTIMA 601 | — | — | — | |
| FERROLI FERROLI OPTIMA 701 | — | — | — | |
| FERROLI FERROLI OPTIMA 801 | — | — | — | |
| FERROLI FERROLI OPTIMA 901 | — | — | — | |
| FERROLI FERROLI SIGMA 20/40 | — | — | — |
Showing 10 of 31 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
manual
FERROLI appliance manual — HAWK (GC 47-381-01)
manualmanualFERROLI appliance manual — HAWK II - 30R0056/0 (01/10/1996) (GC 47-267-22)
manualmanualFERROLI appliance manual — OPTIMA 1001 (GC 47-267-19)
manualmanualFERROLI appliance manual — OPTIMA 2001 (GC 47-367-21)
manualmanualFERROLI appliance manual — OPTIMA 201 (GC 47-267-15)
manualmanualFERROLI appliance manual — OPTIMA 601 (GC 47-267-41)
manualmanualFERROLI appliance manual — OPTIMA 701 (GC 47-267-16)
manualmanualFERROLI appliance manual — OPTIMA 801 (GC 47-267-17)
manualmanualFERROLI appliance manual — OPTIMA 901 (GC 47-267-18)
manualmanualFERROLI appliance manual — SIGMA 30-40 - 30R0313/0 (01/01/1999), SIGMA 50-60 - 30R0256/0 (01/01/1999)
manualmanualFERROLI appliance manual — SIGMA 30FF (GC 41-267-07), SIGMA 40FF (GC 41-267-08), SIGMA 50FF (GC 41-267-09), SIGMA 60FF (GC 41-267-10)
manualNo technical questions yet for this part.
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