Based on this product's specifications, here are some alternatives and similar models
Brass Reducing Coupling FERRO R06Z 1 x 1/2" — threaded plumbing fitting
Summary description:
FERRO R06Z is a brass reducing coupling (1 x 1/2") designed for threaded plumbing connections. As a reducing fitting, it joins pipes or components of different diameters using standard threads. Suitable for water and heating installations, it provides corrosion-resistant metal connection points for reliable sealing and mechanical strength in domestic and commercial piping.