The B-603 is a battery terminal protector used as a barrier against acid fumes that could seep through badly sealed batteries and cause corrosion on the battery terminals. The terminal protector is suitable for the top post and side post batteries.

TERMINAL PROTECTORS AND PREVENTATIVE SPRAY

Battery cleaner and acid detector. Neutralizes acid and dissolves corrosion deposits on both terminals and cables. Yellow cleaner turns pink when acid is detected.