The 80 mm 50 CM Zinc offset allows to connect 2 elbows together in order to have a larger roof offset.
The Zinc 80 50 CM offset is male/female, it is easily fitted.
The Zinc 80 50 CM offset is placed between the 2 elbows
It is larger than the sleeve and is recommended for roof offsets greater than 30 CM.
The Brico-Toiture Zinc 80 50 CM offset is guaranteed for 10 years
Zinc has a shiny metallic aspect when it is new then it takes a patina of a light grey tone. It has a life span of 30 years.