www.phcppros.com/articles/10098-uponor-propex-copper-press-adapters

Uponor ProPEX Copper Press Adapters
September 10, 2019
Uponor's ProPEX copper press adapters allow plumbers to efficiently connect PEX piping to existing copper press piping systems. They are made from high-quality, lead-free brass, meeting all local and national potable-plumbing codes. This is a flameless solution to make hybrid PEX-to-copper connections fast and easy by utilizing existing tools that cut project timelines by up to 71 percent. Importantly, these are the only copper press adapters available in 2 ½- and 3-inch sizes.
Uponor