Tube and Pipe Brush, Bristle Material Polyester, Brush Diameter 4 in, Brush Length 6 in, Handle Length Not Applicable, Bristle Color Red, Yes, Acid Yes, Application Pipes and Tubes, Bristle Firmness Medium, Bristle Length 4 in, Brush Width 3 7/8 in, Color Coding System Yes, Compliant Yes, Handle Color Red, Overall Length 6 1/2 in, Temperature Yes