Main Parts Motor: Permanent Magnetic Synchronous DC Motor Controller: Frequency Conversion Controller Frame & Shaft: 304# Stainless steel Float: HDPE Impeller: PPR Gear Box: / (No Gear Box) Technical Parameters Item No.: SLS-2 PCS of Paddles: 6 PCS of Floats: 3 Power (KW): 2.0 Voltage (V): 380 Oxygen-enrich Capacity (kg/hr) : 3.02 Paddle Diameter (cm): 64