
Potterton
Potterton Duo Fitting G1 5142389
Duo fitting, designation G1, for Potterton Commercial Sirius 2 and Sirius 3 FS90 and FS110 boilers.
£37.20
£31.00 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The DUO FITTING - G1 (FS90) is a Potterton Commercial boiler fitting, identified by the manufacturer part number 5142389 and the G1 fitting designation. It is listed for appliances in the Potterton Commercial Sirius range, where it forms part of the connection assembly within the boiler. The FS90 and FS110 designations in the product name and fit list identify the Sirius models it is specified for.
Signs this part needs replacing
- Weeping or visible escape at the fitting joint under normal operating conditions
- Damaged or cross-threaded threads on the fitting body
- Corrosion, scaling or pitting on the sealing faces
- The joint will not seal correctly after it has been disturbed and remade
- A visible crack or deformation in the fitting body
Before you order
- Read the appliance data badge and confirm the exact Sirius model and variant before ordering
- Check the G1 designation on the part being removed against this listing
- Confirm the fitting position and function on the specific appliance before removal
- Isolate the appliance supplies and allow it to cool before working on the connection
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS90 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS90 | — | — | — |
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.
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