DINAK DW TWIN WALL INSULATED 90º ELBOW Ø180 (7 inch) 
Increasing Adapter To Vitreous (5 - 6 Inch) - Twin Wall Flue 
DINAK DW LOCKING BAND, STANDARD FASTENING Ø180 (7 inch)
£31.27
The Dinak DW Locking Band is an essential element of the twin wall system and is used to connect two DW twin wall flue pieces together where the join. The are not required where a structural wall support is being used in its place. The Standard Fastening Locking Band is a nut and thread standard screw type fastening system.
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