Yamaha - Spring,torsion - 90508-30422-00 Mercury Charging & Electrical Components It fits a broad list

It fits a broad list of Mercury outboards

Injects 100% pure oxygen into livewell or baitwell Increases fish survival over 35% Power requirement: 12V DC drawing less than 1amp No switch required - automatically activated when live well fills with water Easy installation instructions Silent running Emitter size 3

This product has been superseded by: 91-8M0050775

Aftermarket versions may look the same

Yamaha - Spring,torsion - 90508-30422-00 Mercury Charging & Electrical Components It fits a broad list90508 30422 00 SPRING,TORSION WARNING: 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.