Aluminium reducer 2" 1/2 x 1" 1/2

Aluminium G 2" 1/2 threaded reducer, with external thread and internal hole and G 1" 1/2 thread.
Aluminium reducer 2" 1/2 x 1" 1/2
Aluminium G 2" 1/2 threaded reducer, with external thread and internal hole and G 1" 1/2 thread.