Based on this product's specifications, here are some alternatives and similar models
TDM Brass 3/4 inch x 20 mm Threaded Extender, Internal/External Thread
Summary description:
The TDM Brass threaded extender features a 3/4 inch connection with a 20 mm length, designed with both internal and external threads. This durable brass fitting is ideal for plumbing and heating systems, providing a reliable extension for pipe connections and valves. Its robust construction ensures long-term performance and leak-proof assembly in various residential and industrial piping applications.