125mm Internal Diameter IL Flat Flashing

Aluminium flashing for flat roof (storm collar not included).

IL is a twin wall insulated pre-fabricated domestic gas vent manufactured in the UK by SFL. It is designed for naturally aspirated domestic gas fired appliances with a draught hood/ diverter and where the chimney is required to operate under negative pressure, dry conditions and the flue gas temperatures must not exceed 250°C.

Manufactured and certified to BS EN 1856-1.