
Johnson & Starley
Johnson & Starley Expansion Vessel Unvented Kit Spares 1000-0704200
Expansion vessel for Johnson & Starley unvented kit spares, part number 1000-0704200.
At a glance
- Also known as 1691390
£342.91
£285.76 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 Johnson & Starley expansion vessel is a component supplied for unvented kit spares. It accommodates the expansion of heated water within a sealed unvented system, helping to keep system pressure within its normal operating range. This item is listed under Johnson & Starley part number 1000-0704200.
Before you order
- Confirm that part number 1000-0704200 matches the item specified in the unvented kit or system documentation.
- Check that an expansion vessel is the correct component for the fault or maintenance task in hand.
- Verify the vessel's connection arrangement against the existing installation before ordering.
- Ensure the system is depressurised and drained as required before any removal or fitting work.
Compliance
| Alternative numbers | 1691390 |
|---|
No fitment data held for this part.
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.
