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Expansion Vessel Hose - EcoBlue/Neta-Tec

Part number (MPN)
720778201

OEM Replacement Part & Compatibility Table

Brand
Guide price (£)
Not available: check the current price with the seller
Source
retailer parts list
checked 2026-11-06
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

  • DUO-TEC 2 28 COMPACT COMBI NG
  • ECOBLUE 24 COMBI NG
  • ECOBLUE 24 SYSTEM NG
  • ECOBLUE PLUS 24 COMBI NG
  • ECOBLUE PLUS 28 COMBI NG
  • Baxi Ecoblue Plus Combi ErP 24
  • Baxi Ecoblue Plus Combi ErP 28
  • Baxi Ecoblue Plus Combi ErP 33
  • ECOBLUE SYSTEM 12 SYSTEM NG
  • Baxi Ecoblue System ErP 12
  • Baxi Ecoblue System ErP 15
  • Baxi Ecoblue System ErP 18
  • Baxi Ecoblue System ErP 24
  • Baxi Ecoblue System ErP 28
  • Baxi Ecoblue System ErP 32
  • MEGAFLO 2 24 COMPACT SYSTEM NG
  • ECOBLUE COMBI ERP 24
  • ECOBLUE COMBI ERP 33
  • ECOBLUE ERP COMBI28 NG

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does 720778201 fit?

The sources we checked list 720778201 (Expansion Vessel Hose - EcoBlue/Neta-Tec, Baxi) for: DUO-TEC 2 28 COMPACT COMBI NG, ECOBLUE 24 COMBI NG, ECOBLUE 24 SYSTEM NG, ECOBLUE PLUS 24 COMBI NG, ECOBLUE PLUS 28 COMBI NG, Baxi Ecoblue Plus Combi ErP 24, Baxi Ecoblue Plus Combi ErP 28, Baxi Ecoblue Plus Combi ErP 33, ECOBLUE SYSTEM 12 SYSTEM NG, Baxi Ecoblue System ErP 12, Baxi Ecoblue System ErP 15, Baxi Ecoblue System ErP 18, Baxi Ecoblue System ErP 24, Baxi Ecoblue System ErP 28, Baxi Ecoblue System ErP 32, MEGAFLO 2 24 COMPACT SYSTEM NG, ECOBLUE COMBI ERP 24, ECOBLUE COMBI ERP 33, ECOBLUE ERP COMBI28 NG. Always check the model and serial number on the data plate before ordering.

Does 720778201 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 720778201. Ask a Baxi stockist to confirm.

What should I check before fitting 720778201?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

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Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.