DETAILS: P1-Series-Standard Thickness: Use with standard rotary floor machine to pull dirt and soil out of carpeting. Standard thickness, original blend (P1 Series) bonnets work well with either shampoo or solvent based chemicals. Use with a 175 RPM floor machine. The low-profile (P3 Series) bonnet provide improved operator control on rotary floor machines from 175-300 RPM. The low-profile bonnet with scrub strips (P4 Series) adds additional scrubbing action for improved cleaning performance. WEIGHT: 2 lbs. CUBE: 0.38