https://aalberts-ips.us/about-us/ history says
our history
Our manufacturing story in America began as the Consolidated Brass Company (later called Conbraco) in 1928, in Detroit, Michigan with a focus on ball cocks, air cocks and similar products. In 1955, the manufacturing operation moved to the Carolinas, spanning both states with three facilities. in 2010, Aalberts, a global Dutch company, purchased Conbraco. today the “Apollo” brand is manufactured under the company name, Aalberts integrated piping systems, in three locations across South Carolina.
You might click the Contact Us to try to find where you can get a repair kit.