AD 56505956 40" 8DR Prolene Main Broom for Nilfisk Advance Captor Series Sweeper/Scrubbers. Prolene is synthetic filament designed for many sweeping tasks. Prolene brooms retain their shape when wet and is chemical and abrasion resistant. These are truly general purpose brooms. The 8 double row broom is the standard, open configuration. For longer life, look for the high density 12DR Proex broom (56505952). 40"L x 14" OD. Fits Nilfisk Advance Captor 4300, 4800 and 5400 series sweeper/scrubbers. Also fits Nilfisk CR 1100, CR 1200 and CR 1400 series sweeper/scrubbers. Replaces Nilfisk Advance 56505956, 505956. Our Part Number AD 56505956