Berker intermediate ring pws / gl 11098989 B.1; B.3; B.7; S.1 transition adapter for installation switch programs 4011334279006 (Misc.)
For a flange with 56 mm inner dimension to find a twin satellite Zentralscheibe, is not so easy. The manufacturer does not give most of the dimensions. After a long search I found one at Berker. Although there were again no measurements in the produc