Grant Green System External High Level/Vertical Flue Extension 450mm C/W Locking Band - GX450/90B Excluded They are then finished with

They are then finished with copper

4 x wall screws

Fitted with branded quality components

Grant Vortex Pro Combi boilers have larger plate heat exchangers which due to their low water content and great surface area

Available in 150 –300 litre capacities

Grant Green System External High Level/Vertical Flue Extension 450mm C/W Locking Band - GX450/90B Excluded They are then finished withProduct Description Grant's range of EZ Fit Flue Systems has been extended to include 'external' high level and vertical options for all Grant condensing models. These systems are supplied in a modular form, enabling most installations to be accommodated and are manufactured from high grade. The Grant Green System External High Level Vertical Flue Extension 450mm C W Locking Band GX450 90 enables all internal boilers to be connected to an 'external'