SharkBite item UCP142Z is a 1inch PEX Press x 3/4inch MNPT brass male adapter designed to create secure, permanent transitions between PEX piping and threaded system components. Built with a twopiece, patentprotected design, it incorporates an integrated tool locator and pipeinsertion indicators to ensure accurate, consistent press connections. The fittings leadfree brass construction provides longlasting durability and corrosion resistance, making it suitable for potable water applications. Compatible with PEXA, PEXB, and PEXC, this adapter supports efficient, codecompliant installations in both residential and commercial plumbing systems.