Jabsco diaphragm pumps are selfpriming so that they can be mounted above and outside of harsh bilge environments. Because they are mounted remotely, the intake hose can be routed to the lowest point of the bilge regardless of SPACElimitations. The reliable diaphragm design is not damaged by dry running. &149;SelfPriming &149;Diaphragm Design Allows Dry Running &149;Quiet Operation &149;Large Surge Chamber for Even Water Flow &149;Permanently Lubricated Ball Bearings on Shaft and Connecting Rod &149;Large Vibration Absorbing Pads &149;Corrosion Resistant Materials Throughout for Sea Water Service This pump meets the following US Coast Guard Regulations &149;Meets USCG Regulation 183.410 and ISO 8846 MARINE for Ignition Protection. &149;Flow Requirements Title 46, Chapter 1, Subchapter T, Section 182.2510 for Small Passenger Vessels. This pump listed as NMMA accepted.