Slanted ceiling cover for outer diameter 175mm
A ceiling cover used when a double chimney penetrates a slanted ceiling.
1mm thick galvalume steel plate with heat resistant coating.
The outer dimensions are 435mm x 260mm, and the semi-ellipse with a diameter of 210mm is open.
Since it is elliptical so that it can be used on sloped ceilings, there will be some gaps when it is installed on normal horizontal ceilings.