COMBI joints came from customers’ desire to make connections between pipes made from different materials and with great difference in outer diameters.
COMBI joints are used in cases when joints with the usual diameter extent can not be used for connecting pipes with great differences in outer diameters.
Looking at the construction solution, COMBI joints are similar to the first generation UNIVERSAL joints, the difference being that COMBI joints are not symmetrical and they cover different diameters on either side.
Look at the table in Catalog in order to see a part of the very wide diameter scope which can be combined while making pipe connection.