Domestic/Import: Domestic, Width: 4 inch, Height: 4 inch, Inlet Connection: MNPT, Outlet Connection: FNPT C, Nominal Size: 1/2 inch. The Universal Tub and Shower Rough Valve Body is designed for ease of installation with 1/2 in MNPT inlet and FNPT outlet, ideal for both plumbing professionals and DIY enthusiasts.