Baxi
Baxi Expansion Vessel Hose 720778201
Expansion vessel hose for Baxi EcoBlue, Neta-Tec, Megaflo 2 and Duo-Tec boilers, part number 720778201.
At a glance
- Also known as N6165
Showing prices
£33.60
£28.00 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 Baxi 720778201 is an expansion vessel hose for Baxi gas boilers. It provides the connection between the expansion vessel and the boiler's heating circuit. The part is listed for EcoBlue and Neta-Tec models, along with Megaflo 2 and Duo-Tec variants.
Signs this part needs replacing
- Water weeping or staining at the hose ends or along its length
- Boiler pressure dropping with no leak visible elsewhere on the system
- Hose material hardened, cracked or perished with age
- Kinked or distorted hose restricting flow to the expansion vessel
Before you order
- Confirm the boiler model and any serial number suffix (AC or BC) against the fit list
- Check the hose connections on the boiler are sound before fitting
- Match the part number 720778201 against the number on the component being replaced
Compliance
| GC number | H90-463 |
|---|---|
| Alternative numbers | N6165 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-25 | 47-077-25 | — | — |
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING BC | 47-077-25 | 47-077-25 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-26 | 47-077-26 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING BC | 47-077-26 | 47-077-26 | — | — |
| BAXI DUO-TEC 2 COMBI 28 COMPACT | 47-075-72 | 47-075-72 | — | — |
| BAXI ECOBLUE COMBI 24 | 47-075-81 | 47-075-81 | — | — |
| BAXI ECOBLUE COMBI 28 | 47-075-82 | 47-075-82 | — | — |
| BAXI ECOBLUE COMBI 33 | 47-075-83 | 47-075-83 | — | — |
| BAXI ECOBLUE COMBI ErP 24 | 47-077-11 | 47-077-11 | — | — |
| BAXI ECOBLUE COMBI ErP 28 | 47-077-12 | 47-077-12 | — | — |
Showing 10 of 45 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
BAXI appliance manual — 124 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-25), 124 ErP COMBI - SERIAL NUMBER ENDING BC (GC 47-077-25), 128 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-26), 128 ErP COMBI - SERIAL NUMBER ENDING BC (GC 47-077-26)
manualmanualBAXI appliance manual — DUO-TEC 2 COMBI 28 COMPACT (GC 47-075-72)
manualmanualBAXI appliance manual — ECOBLUE COMBI 24 (GC 47-075-81), ECOBLUE COMBI 28 (GC 47-075-82), ECOBLUE COMBI 33 (GC 47-075-83)
manualmanualBAXI appliance manual — ECOBLUE COMBI ErP 24 (GC 47-077-11), ECOBLUE COMBI ErP 28 (GC 47-077-12), ECOBLUE COMBI ErP 33 (GC 47-077-13)
manualmanualBAXI appliance manual — ECOBLUE PLUS COMBI 24 (GC 47-075-84), ECOBLUE PLUS COMBI 28 (GC 47-075-85), ECOBLUE PLUS COMBI 33 (GC 47-075-86)
manualmanualBAXI appliance manual — ECOBLUE PLUS COMBI ErP 24 (GC 47-077-08), ECOBLUE PLUS COMBI ErP 28 (GC 47-077-09), ECOBLUE PLUS COMBI ErP 33 (GC 47-077-10)
manualmanualBAXI appliance manual — ECOBLUE SYSTEM 12 (GC 41-077-95), ECOBLUE SYSTEM 15 (GC 41-077-96), ECOBLUE SYSTEM 18 (GC 41-077-97), ECOBLUE SYSTEM 24 (GC 41-077-98), ECOBLUE SYSTEM 28 (GC 41-077-99), ECOBLUE SYSTEM 32 (GC 41-470-01)
manualmanualBAXI appliance manual — ECOBLUE SYSTEM ErP 12 (GC 41-470-23), ECOBLUE SYSTEM ErP 15 (GC 41-470-24), ECOBLUE SYSTEM ErP 18 (GC 41-470-25), ECOBLUE SYSTEM ErP 24 (GC 41-470-26), ECOBLUE SYSTEM ErP 28 (GC 41-470-27), ECOBLUE SYSTEM ErP 32 (GC 41-470-28)
manualmanualBAXI appliance manual — MEGAFLO 2 SYSTEM 12 COMPACT GA (GC 41-075-70), MEGAFLO 2 SYSTEM 15 COMPACT GA (GC 41-075-71), MEGAFLO 2 SYSTEM 18 COMPACT GA (GC 41-075-72), MEGAFLO 2 SYSTEM 24 COMPACT GA (GC 41-075-73), MEGAFLO 2 SYSTEM 28 COMPACT GA (GC 41-075-74)
manualmanualBAXI appliance manual — NETA-TEC COMBI 24 GA (GC 47-075-51), NETA-TEC COMBI 28 GA (GC 47-075-52), NETA-TEC COMBI 33 GA (GC 47-075-53)
manualmanualBAXI appliance manual — NETA-TEC PLUS COMBI 24 GA (GC 47-075-64), NETA-TEC PLUS COMBI 28 GA (GC 47-075-65), NETA-TEC PLUS COMBI 33 GA (GC 47-075-66)
manualmanualPOTTERTON appliance manual — ULTRA SYSTEM 12 ErP (GC 41-592-71), ULTRA SYSTEM 15 ErP (GC 41-592-72), ULTRA SYSTEM 18 ErP (GC 41-592-73), ULTRA SYSTEM 24 ErP (GC 41-592-74), ULTRA SYSTEM 28 ErP (GC 41-592-75)
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