Parts Wash Washer Brush Research PWA Hand Brush w/ Flow Thru Hole BRM Brush Research Professional Parts Cleaner Brush with Fluid Flow Thru Hole Tool Length: 10 1/2" x 1-3/8 Dia; Bristles 2" long x 1-3/8 Dia For use with Safety Kleen, Kleer-Flo, ENCO, Harbor Freight and most other parts washers Injection molded Polypropylene handles, synthetic filaments for resistance to solvent cleaners. This version has Thru-Hole Wash Brush