HHLF Pumps by MP Pumps are self-priming; pumps that meet USCG specifications for auxiliary fire systems. They are available with 1-1/2" NPT or 2" NPT connections in cast iron or all bronze construction. The high suction center line and impeller design eliminates premature priming loss while ensuring consistent priming capability. The HHLF pump is capable of achieving up to 25 feet suction lift.