Standard Centering Head, Compatible Pipe Diameter (Maximum) 4 in, Compatible Pipe Diameter (Minimum) 1/2 in, Includes -, Features Y-Type Head Fitted with an Adjustable Dial Bubble Protractor (DSL), For Use On Pipes, Tanks, Tool Functions Establishing Angles and Marks for Butt-Ins, Tool Type Centering Head. This item has been restricted from sale in the following state (s): []