Tobee Mission 2500 Supreme Centrifugal Pump has a semi-open impeller design that contains wide-tipped vanes and a more tangential circumference of the suction allowing the pump to create a smoother flow pattern when handling abrasive fluids. The 2500 Supreme is available in hard iron, supreme hard iron, and aluminum bronze fluid ends. The pumps can be unitized with electric motors, diesel engines, and hydraulic motors (horizontal, vertical, or close-coupled configuration). Design Features: Versatile stuffing box Thick, strong, concentric casing with replaceable casing wear pad Casing provided with replaceable casing wear pad on 4x3x13 - 10x8x14 models Replaceable stuffing box cover with dual stuffing box bolts Long-life, no-adjustment mechanical seal available for near zero leakage Replaceable shaft sleeve Solid Frame base