GROCO 2-1/2" Engine Flush Kit & Adaptor Piston multiple MasterShunt models may be

multiple MasterShunt models may be installed in parallel

Includes USB cable

Ground - Standard

You can charge any devices because it has built-in micro-usb

GROCO 2-1/2" Engine Flush Kit & Adaptor Piston multiple MasterShunt models may be2 1 2" Engine Flush Kit & Adaptor The Concept A simple quarter turn quick release plug can add safety and flexibility to any water system. Add SSC to the top of any seacock to allow instant emergency bilge pumping, or to simplify winterization and cooling system flushing. In an Emergency While the connected engine is running, close the seacock and remove the quick release plug. Excess bilge water will be pumped overboard by the engine's raw water