The easiest boat flushing system to use the easy flow system allows you to quickly flush your boat’s circulation system without the worry of enough water flow flushing through the pump and its housing or having to contend with monitoring and adjusting the flushing muffs. Simple quick connect to the valve for flushing and quick connect the sealing cap for securely sealing shut the valve inlet US 9,010,355, B1. Visit us at https://easyflowflushing.com/product/easyflow-valve-and-quick-connect-cap/