With their overhead cam engines, Robin Subaru centrifugal pumps maximize performance while lowering emissions and improving fuel economy. The 2-inch PKX201 has a 4.5-horsepower engine and delivers 158 gallons per minute. The 3-inch PKX301 runs off a 6-horsepower engine while pumping 256 gallons per minute. A cast-iron, three-blade impeller resists abrasion and a cast-iron volute stands up to the debris sucked through the strainer. The volute design pumps water straight into the cavity for fast priming and the carbon-ceramic seal is self-lubricating.
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