Brass Reducing Coupling 47,9 mm (G 1 1/2") / 42 mm (G 1 1/4"). The Brass Reducing Coupling has a male- and female thread. It serves to connect, e.g. a pipe to a quick coupling. With 47.9 mm (G 1 1/2") male thread and 42 mm (G 1 1/4") female thread.
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