Raritan Reverse Polarity Alarm [RPA] Brand_Quick Our next generation of Rule

Our next generation of Rule pumps include check valves and to do this we've created a hidden air vent to prevent airlocking

The valve body is constructed of durable

Small: (inch) 11

When received by other vessels and coast stations

Raritan Reverse Polarity Alarm [RPA] Brand_Quick Our next generation of RuleReverse Polarity Alarm An essential aid for traveling boaters when connecting to unfamiliar dockside power. The quality of marina wiring can vary greatly from place to place and from plug to plug. That is why most boats designed to plug into shore power have a polarity indicator. It is usually a warning light on the AC electrical panel, although it can also be an audible alarm. It is an important safety feature that few boat owners fully understand or