Grant Extension 250mm 12-26kW Black GX250/90B

250mm flue extension suitable for use with Grant boilers up to 26kW.

Features and benefits:

• Supplied in modular form - accommodates most installations
• Short (270 - 350mm) or standard (370 - 550mm) starter kits available
• Extensions and elbows from the low level balanced yellow system available to extend starter kits
• Use plume diverter to convert existing yellow system low level flue to an external high level/vertical arrangement
• Create offsets in straight flue runs by using 45 degrees elbows and extensions