Waste, Twist Handle, 1.5" & 2", Material: Stainless Steel Drain, Flange, And Handle Size: 4 3/8" Flange 1 1/2" Nps Female Connection 2" NpsMale Connection 3 1/2" Sink Opening Plating: Nickel-Plated, Replaces parts for: Component Hardware Group, for models: D55-7510