Replace aging galvanized with copper or PEX from Plumbing Supply And More - Best Supply House

https://www.scribd.com/document/1049619891/Supply-House-Checklist-Rough-In-to-Finish-for-Bathrooms-222759

Replace aging galvanized with copper or PEX from Plumbing Supply And More - Best Supply House, including transition fittings for smooth upgrades.