Horizontal Multi-Stage Jet/Centrifugal, Cast Iron, 1 HP, 13 GPMHMS Series pumps are available in 3/4, 1 and 1-1/2 HP models for a wide range of applications in deep or shallow well with heads to 167 feet capacities to 62 GPM.KEY FEATURESQuality Construction - Close-grained cast iron pump body is rugged, one-piece unit, specially treated to resist corrosion. Drain port provided for easy winterizingAutomatic Pressure Regulator - Faster-acting and quieter, design eliminates "hunting" for correct drive pressure. New improved stem and guide are precisely molded to assure efficient, trouble-free performance on all deep wells.Polycarbonate Impeller - Precision-molded for perfect balance and ultra-smooth for highest performance and efficiency.Motor Windings - Superior insulation materials protect against excessive moisture and contaminants to ensure prolonged motor life.Sta-Rite