Tank Brush Head, Tool Type Tank Brush Head, Bristle Material Polyester, Brush Length 4 1/2 in, Bristle Firmness Medium, Bristle Color Blue, Chemical Resistant Yes, Temperature Resistant Yes, FDA Compliant Yes, Acid Resistant Yes, Color Coding System Yes, Bristle Length 5 in, Connection Thread Type European, Handle Connection Type Threaded. This item has been restricted from sale in the following state (s): []