Flushmaster has designed and created the new aftermarket Flush Port Quick Connect for Mercury Outboard Engines.. Upgrade your Mercury outboard engine with our cutting-edge Flush Port Quick Connect, designed to replace the OEM flush port seamlessly and permanently. This innovative accessory is a game-changer for every boating enthusiast, providing unparalleled convenience and efficiency in maintaining and flushing your outboard engine.. Features. Durable - Made with marine-grade materials, we des