BOB 13PW 13" Poly & Flat Wire Mix Gutter Broom for Bobcat Sweeper Attachments. Our durable and long lasting oil-tempered flat wire mixed with the industry standard .090" x .120" oval polypropylene filament. An interesting blend of both poly and wire for special sweeping jobs which require the cutting action of the wire mixed with the flexible sweeping action of the polypropylene. Fits Bobcat sweeper attachments which require the 13" diameter block side brush. We also offer this side brush in an all poly (BOB 13P) and all wire (BOB 13W). Please call 800-277-3780 for volume discount / freight options. Priced Each. Our Part Number BOB 13PW