Size (inch) 4" - MM (100mm, Model No.- PX-100, Power (W)-50W, Voltage-230V/50Hz, Current-0.35A, Air Flow (m"h)-322m"/h - CFM-189, Net Weight-1.9 KG, Gross Weight-2.3 KG, Noise-30 DB, Speed (RPM)-2350 Size (inch) 6" - MM (150mm, Model No.- PX-150, Power (W)-55W, Voltage-230V/50Hz, Current-0.25A, Air Flow (m"h)-660m"/h - CFM-388, Net Weight-2.5 KG, Gross Weight-3 KG, Noise-33 DB, Speed (RPM)-2350 Size (inch) 8" - MM (200mm, Model No.- PX-200, Power (W)-132W, Voltage-230V/50Hz, Current-0.61A, Air Flow (m"h)-900m"/h - CFM-529, Net Weight-3.1 KG, Gross Weight-3.7 KG, Noise-40 DB, Speed (RPM)-2350