Based on this product's specifications, here are some alternatives and similar models
Brass Extension Fitting FERRO P30Z 1/2" (12.7 mm) x 30 mm
Summary description:
FERRO P30Z is a brass extension fitting with 1/2" (12.7 mm) thread size and 30 mm length. Designed for plumbing installations, this solid brass connector extends threaded pipe or fitting joints, ensuring secure mechanical connection and corrosion resistance. Suitable for use in potable water, heating and sanitary systems where a short extension is required.