Mercury - Rectifier - 816770 Rescue Whistles & Handheld Air Horns minor adjustments like idle mixture

minor adjustments like idle mixture or synchronization may be needed depending on your setup

so it won't jerk your watercraft around when you pull the trailer forward

Through-hull design – Delivers steady

Everything feels calmer and more predictable

you’ll know your V6 or V8 outboard is protected where it counts

Mercury - Rectifier - 816770 Rescue Whistles & Handheld Air Horns minor adjustments like idle mixtureThis product has been superseded by: 8M0058226 RectifierWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.