Brasscraft 191B  1-1/4-Inch OD Tube x 1-1/4-Inch FIP Waste Connector, Chrome Uniform wall thickness; no variations in wall thickness, close dimensional tolerances assured Better threads; uniform cleaner threads insure positive threaded connections, less chance of cross-threading Cleaner, smoother water ways; uniform smooth internal surfaces allow full unobstructed flow through connector Smooth Finished Appearance; easier to assemble, no burrs or rough surfaces to catch or hang up during assembly Backed by BrassCraft's 65-year history and reputation for quality and service