Mastervolt Boat BI-1203S Battery Isolator 83012031 | 120AOpens in a ne

A quality Mastervolt Boat BI-1203S Battery Isolator 83012031 | 120AOpens in a new window or tab from Hook & Hull Co. — built to perform in demanding on-water conditions.

• Marine-grade construction for durability
• Precision-engineered for a correct fit
• Suitable for freshwater and saltwater use

Please check fitment, sizing, and compatibility before purchasing. Professional installation is recommended where required.