For boats up to 10ft

in anchor lockers or cockpit coaming

it maintains partial splash protection while still allowing access to stereo controls

The double coil is sometimes used by boaters who have hydronic heating to maximize use of the heating

Trochoid Type Cam-Driven Oil Pump Alternator 12V 145W 10A Cooling System Water-Cooled Saltwater Rated YES Gear Ratio 2

Cobra Wire & Cable - Flat Boat Cable , 2-Wire Flat Marine Cable , 100’REELS, Part No. B7W12T-21-100 , Gauge/Cond 12/2 i2System For boats up to 10ftTinned copper conductors extra flexible Type 3 marine stranding, 105C PVC insulation, 50VDC, 600V AC. Flame retardant white PVC Jacket. UL listed standard 1426 Boat Cable 2 conductor: Color coded Red (positive), Black (negative), for DC wiring applications