CONSTRUCTION: Pump-Peripheral Pump Body:Cast Iron Front Cover:Cast Iron Impeller:Brass Mechanical Seal:Carbon/Ceramic/Stainless Steel MOTOR-Toptek Electrical Motor Motor Housing:Alloy Aluminium Shaft:Carbon Steel Insulation:Class B Protection:IP44 Cooling:External Ventilation AVAILABLE ON REQUEST: ·Higher Head or Big Capacity ·pump body or front cover ·Pump Shaft ·Special Mechanical Seal ·Protection IP55 ·Other Voltage or Frequency 60HZ