9 Metre 5" 316 Flexible Multifuel Stove Flue Liner Pack/Kit With Hanging Cowl Stainless Steel Class 1 HETAS 9m 904 Grade : Amazon.co.uk: DIY & Tools
5 Inch Flexi Liner 316 Grade — GR8 Fires
Flue liner identification... Can anyone tell if this is 904/316 or 904/904? - Log burning stoves and fireplaces - Arbtalk | The Social Network For Arborists
6" Dura Flue 904/316 Pack - Flue & Ducting
Flue liner identification... Can anyone tell if this is 904/316 or 904/904? - Log burning stoves and fireplaces - Arbtalk | The Social Network For Arborists
904/904 FLEXIBLE CHIMNEY FLUE LINER KIT multi fuel flex stove black hanging cowl | eBay
Differences between 316 and 904 flue liner? - Flexifluedirect.com