Based on this product's specifications, here are some alternatives and similar models
TDM Brass 1/2 inch x 40 mm Threaded Extension M/F
Summary description:
The TDM Brass 1/2 inch x 40 mm threaded extension is a high-quality plumbing fitting designed for extending pipe connections in water supply and heating systems. Featuring a male-to-female (M/F) configuration, this durable brass component ensures a secure and leak-proof connection. It is ideal for professional plumbing installations, providing reliable performance and corrosion resistance in various residential and commercial piping applications.