Adjustment from 1"-25mm up to 12"-300mm, adjustment step 25mm.
Bracket Diameter Size:
180mm diameter (for 5″/125mm internal and 7″/180mm external diameter of twin wall flue)*
200mm diameter (for 6″/150mm internal and 8″/200mm external diameter of twin wall flue)*
230mm diameter (for 7″/180mm internal and 9″/230mm external diameter of twin wall flue)*
250mm diameter (for 8″/200mm internal and 10″/250mm external diameter of twin wall flue)*
*Diameters quoted for our twin wall flues based on 25mm of insulation thickness.