Arleigh
Arleigh Water Control Assembly NSB400
Arleigh NSB400 water control assembly, a diverter valve component for the W135 Auto gas boiler.
At a glance
- Also known as 2950022
£501.68
£418.07 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 Arleigh NSB400 is a water control assembly, listed under diverter valves for gas boiler spares, and is specified for the W135 Auto appliance. It manages the routing of water through the boiler's domestic hot water and heating circuits. The assembly is identified by the manufacturer part number NSB400.
Before you order
- Confirm the appliance model reference matches W135 Auto before ordering.
- Check the markings on the existing water control assembly against NSB400 to verify the correct part.
- Isolate the appliance and drain the water circuit as required before removal, following the manufacturer's instructions.
Compliance
| Alternative numbers | 2950022 |
|---|
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?
Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.