Grant Flexi Hose For Vessel V3 Combi Vortex Mpcbs79

3/4" Female elbow x 1/2" Male straight Pro combi pre Dec.14 Pro exc 15-21kw Eco

Grant Flexi Hose for Expansion Vessel – MPCBS79
The Grant MPCBS79 is a genuine flexible braided hose used to connect the internal expansion vessel to the sealed heating system in Grant Vortex Combi V3 boilers. Designed to handle temperature fluctuations and pressure variations, this hose provides a secure, durable link that prevents leaks and reduces strain on the system during thermal expansion.

• OEM part code: MPCBS79 – genuine Grant UK component

• Designed for internal expansion vessel connection

• Pre-sized for Vortex Combi V3 layout

• Braided stainless steel exterior with heat-resistant inner lining

• Accommodates pressure and movement in sealed systems

• Prevents strain on fixed pipework and fittings

• Ideal for replacements during servicing or repairs

• Supplied with standard threaded ends for quick installation

Compatible Grant Boiler Models

• Grant Vortex Combi V3 21kW

• Grant Vortex Combi V3 26kW

• Grant Vortex Combi V3 36kW

When to Replace the Flexi Hose

• Hose is leaking, swollen, kinked, or corroded

• Signs of cracking or deterioration from heat/pressure

• When replacing the expansion vessel or conducting a full boiler service

• If the hose is more than 5 years old

Technical Specifications

• Part Number: MPCBS79

• Manufacturer: Grant UK

• Type: Flexible braided expansion vessel hose

• Length: Model-specific, pre-cut to fit Combi V3 internal setup

• Material: Stainless steel braid with internal heat-resistant liner

• Connections: Threaded (compression or push-fit depending on model)

• Pressure Rating: Suitable for sealed heating systems (up to 3 bar)

A critical part of maintaining system pressure and preventing failure due to thermal movement. Supplied as a genuine Grant part from Heating-Parts.co.uk – trusted source for boiler spares.