Flushmaster Outboard Flushing System - 4 Outlet w/Four 9' Hose Kits [SM-FM4009] Communication | Accessories A: (inch) 1 37/64" /

A: (inch) 1 37/64" / (mm) 40

Spool roller supports your boat's keel as it sits on the trailer

Dry contact output fail relay

A remote on/off switch or relay contact can be connected between L and H

Flushmaster Outboard Flushing System - 4 Outlet w/Four 9' Hose Kits [SM-FM4009] Communication | Accessories A: (inch) 1 37/64" /Outboard Flushing System 4 Outlet with Four 9' Hose Kits The Flushmaster is a portable, marine grade device designed to automate the flushing process for up to four outboard motors. Powered by (3) AA batteries, it ensures thorough engine cleaning by flushing each motor sequentially before automatically shutting off. With its IP67 waterproof certification, the Flushmaster is built to last, offering a convenient and time saving solution for outboard