Rule In-Line Ventilation Blower - 12 Volt Size:4" The Blue Sea 8237-BSS AC

The Blue Sea 8237-BSS AC Digital Voltmeter

Hole Diameter: 3/8 inch

For use with GHC 20 and compatible¹ chartplotters to control your autopilot

Increases fuel economy

Oil cooler specs

Rule In-Line Ventilation Blower - 12 Volt Size:4" The Blue Sea 8237-BSS ACRule In Line Blower Ducting Part Number: 140 Designed for efficient, high output operation, these blowers feature our exclusive front and rear shaft seals and corrosion resistant motor housings for long life. Compact and easily installed on any flat surface, Rule in line blowers provide higher air flow, lower amp draw, and quieter operation than standard blowers. For International & US Markets. Features Efficient high volume air flow Quiet operation