Grant Blue System Extension 500mm (100mm)
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Grant Blue System Extension 500mm (100mm)
(Approx. 3-5 working days)


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This 500mm extension is part of Grant’s EZ-Fit Blue System in the 100mm size class and is used to lengthen external single-wall plume or flue arrangements on oil boilers between 26kW and 70kW. Its half-metre length makes it suitable for installations that require a longer continuous section before connecting to an elbow, plume kit or vertical terminal.
The section connects securely to other Blue System components using the supplied locking band, maintaining stability across extended vertical or horizontal runs. Its longer form helps reduce the need for combining smaller lengths, which can simplify alignment and improve the mechanical rigidity of the overall flue route.
Integrated within the full Blue System range, this extension can be paired with directional elbows, plume diverter kits, wall brackets and high-level or vertical terminals available throughout the Oil Boiler Flues selection. As with all plume-management installations, Grant’s planning rules apply, including the maximum 6m vertical rise and adjustments when introducing 45° bends.
- Adds a fixed 500mm section to 100mm Blue System layouts
- Suitable for 26–70kW Grant oil boiler installations
- Helps reduce joint count in longer external runs
- Designed for single-wall plume or flue routing
- Locking band supplied for secure connection
| Connection Type | Push-fit / Locking Band |
|---|---|
| Diameter | 100 mm |
| Height | 100 mm |
| Includes | Locking Band, 500mm Extension |
| Length | 500 mm |
| Model Name / No | GPD500EXT/200 |
| Pack Quantity | 1 Per Box |
| Weight | 1.6 kg |
| Sold Per | Each |
| Suitable For | Grant oil boilers 26–70kW |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
This 500mm extension is part of Grant’s EZ-Fit Blue System in the 100mm size class and is used to lengthen external single-wall plume or flue arrangements on oil boilers between 26kW and 70kW. Its half-metre length makes it suitable for installations that require a longer continuous section before connecting to an elbow, plume kit or vertical terminal.
The section connects securely to other Blue System components using the supplied locking band, maintaining stability across extended vertical or horizontal runs. Its longer form helps reduce the need for combining smaller lengths, which can simplify alignment and improve the mechanical rigidity of the overall flue route.
Integrated within the full Blue System range, this extension can be paired with directional elbows, plume diverter kits, wall brackets and high-level or vertical terminals available throughout the Oil Boiler Flues selection. As with all plume-management installations, Grant’s planning rules apply, including the maximum 6m vertical rise and adjustments when introducing 45° bends.
- Adds a fixed 500mm section to 100mm Blue System layouts
- Suitable for 26–70kW Grant oil boiler installations
- Helps reduce joint count in longer external runs
- Designed for single-wall plume or flue routing
- Locking band supplied for secure connection
| Connection Type | Push-fit / Locking Band |
|---|---|
| Diameter | 100 mm |
| Height | 100 mm |
| Includes | Locking Band, 500mm Extension |
| Length | 500 mm |
| Model Name / No | GPD500EXT/200 |
| Pack Quantity | 1 Per Box |
| Weight | 1.6 kg |
| Sold Per | Each |
| Suitable For | Grant oil boilers 26–70kW |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.


