Perko Flush Pro 5/8-Inch Engine Flushing Valve

The Perko Flush Pro 5/8 in engine flushing valve is sized for smaller raw water intake lines on compatible inboard engines and generators. It adds a garden hose connection to the cooling system for fresh water flushing. When hose pressure is applied, a check valve automatically closes off the hull intake.

That means you can flush with the boat on a trailer or lift without opening the engine room plumbing. A transparent body shows water moving through the valve. The polymer housing and stainless spring are made for repeated marine use.

On supported installations, the valve can also serve as an emergency bilge pumping point when set up per Perko's instructions. Never run the engine without enough cooling water, and confirm normal raw water flow after flushing. Browse more Thru-Hulls & Drains for the 1.25 in size and other fittings.

Key Features

• Fits 5/8 in intake lines
• Garden hose flushing connection
• Automatic check valve closes the intake
• Transparent body