Aqua-Flo by Gecko's Flo-Master HP pumps are designed with a unique, high-performance impeller providing flow rates that exceed all tested competition. Ideal for larger, multi-jetted tubs or similar applications requiring greater output. Each pump is engineered with careful attention to detail and accuracy. Spa Pump Features: Long life shaft seal Built-in overload protection Reinforced engineered plastic construction Adapts to hair and lint traps for self priming aplications Stainless steel volute fasteners Available in one or two speed models of 0.5hp, 0.75hp, 1.0hp, 1.5hp, or 2.0hp (SEE THE AVAILABLE STYLES TAB) In 2012, the manufacturer changed the way Aquaflo pumps are rated. These pumps are now assigned both an operational horsepower (ohp), and a total horsepower (thp) rating. Previous versions of these pumps used only the operational horsepower. If you are replacing an older Aquaflo pump, be sure to match the operational hp rating rather than the total hp.