
Grant
Grant Expansion Vessel Hose Adaptor 400Ltr Cylinder GCS33
Hose adaptor for the expansion vessel connection on Grant DuoWave HP and MonoWave HP cylinders, listed for the 400 ltr cylinder.
£11.30
£9.42 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 Grant Expansion Vessel Hose Adaptor - 400ltr Cylinder is a connection component for the expansion vessel hose on Grant cylinders. It is listed for the 400 ltr cylinder and is used across the DuoWave HP and MonoWave HP cylinder ranges.
Signs this part needs replacing
- Water weeping or dripping at the adaptor joint
- Corrosion, scale or staining around the adaptor body or connection
- The expansion vessel connection failing to hold pressure
- Damaged threads or a marked sealing face after removal and refitting
Before you order
- Confirm the cylinder model and capacity — this adaptor is listed for the 400 ltr cylinder
- Check which cylinder range is installed: DuoWave HP Direct, DuoWave HP Indirect or MonoWave HP
- Inspect the existing adaptor and its connection for thread or seal damage before ordering
- Have the cylinder model and part number GCS33 to hand
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GRANT DuoWave HP Direct 170 Litre | — | — | — | |
| GRANT DuoWave HP Direct 200 Litre | — | — | — | |
| GRANT DuoWave HP Direct 250 Litre | — | — | — | |
| GRANT DuoWave HP Direct 300 Litre | — | — | — | |
| GRANT DuoWave HP Direct 400 Litre | — | — | — | |
| GRANT DuoWave HP Direct 500 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 170 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 200 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 250 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 300 Litre | — | — | — |
Showing 10 of 18 compatible appliances.
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.
