The 4-inch PKX401 centrifugal pump from Subaru Industrial Power Products has a maximum delivery volume of 356 gpm and is powered by a 9 hp EX27 engine. An abrasion-resistant cast-iron three-blade impeller extends life, while a hardened cast-iron volute withstands debris sucked through the strainer. The volute pumps water straight into the cavity for fast priming. The carbon ceramic seal is self-lubricating. A heavy-duty strainer protects the pump from large solids. An aluminum die-cast housing withstands debris. Suction and discharge nipples have standard NPT fittings for quick hose connections. The unit comes with a toolkit, hose band and vibration isolators. 847/540-7300; www.subarupower.com.