LOMAX
Used to splice two rebars of different diameter.
A threaded transition coupler joins two rebars of different diameter (Ø1 → Ø2) without welding or lapping. Available in cylindrical and conical versions.
Rebar section transition up the building height, joining columns with different reinforcement, tying to starter bars of a different diameter.
Diameter tables are on the typed pages: cylindrical, type AT and conical, LX-CT.