Dual Pro B.O.S. Battery Optimization System - 12V - 2-Bank [BOS12V2] Brand_Rule Stern Tube Diameter (D): 2-1/2"

Stern Tube Diameter (D): 2-1/2" to 2-5/8"

while tilting the cradle forward and back for the optimum angle

Dacron provides superior strength with reduced friction to allow smooth operation

Features a tricuspid check valve to minimize back flow of water

Dual Pro B.O.S. Battery Optimization System - 12V - 2-Bank [BOS12V2] Brand_Rule Stern Tube Diameter (D): 2-1/2"B. O. S. Battery Optimization System 12V 2 Bank B. O. S. actively shuttles energy between batteries to keep the pack balanced, increasing battery strength and longevity. Batteries in a pack will become out of balance and the pack is only as good as its weakest link. In watercraft applications, this is further compounded when the trolling motor battery is used for peripherals and or to assist the cranking battery. B. O. S. actively shuttles energy as