Model RZ-4 Electrical Engine: 10 HP; 2800 RPM; 220/660 V; 50 Hz; Protection IP 55; Metal Blinded 100%. Suction lift: 2" Ø Pumping: 1 1/2" Ø Installation: RZ-4-E Under fluid level. RZ-4-R Over fluid level (look pump despiece) (look installation planes) (See the table of chemical resistances)