2-Hole Wall Mount Vessel Rough-In Valve GROHE SilkMove for a lifetime of smooth operation 1/2 in. NPT Female inlets 4-5/16 in. Center to center Cast brass construction For one hand vessel Grohe spare part 8-5/8 in. height 7-7/8 in. Ring diameter 1-15/16 in. Escutcheon diameter