12V Rule 25SA 500GPH Automatic Marine Bilge Pump Submersible with 3/4" Hose Connection 25SP roduct Description:New Rule 500 GPH automatic submersible bilge pump. Part number 25SA. Replaces the discontinued Rule 25S bilge pump. Has a new anti-airlock design with backflow prevention and threaded discharge for multiple port options. Has the same base footprint as the 25S.Specification:For fresh water and salt water use only Runs on 12V DC power Draws up to 1.6 amps at max flow Requires 4A fuse (not included)Discharge port is 3/4髢?hose or 3/4髢?NPSMD imensions are 4.2髢?(107 mm) high x 2.9髢?(74 mm) width x 2.5髢?(64 mm) depth (not including discharge port)Feature:Automatic electronic sensing 髢?No float switch needed!Checks for water every 2.5 minutes by running for a half second Consumes 0.2 amps per day Keeps more water out of the bilge than a similar float switch setup Connect black wire to negative and brown wire to positive 髢?brown/white wire is manual override (use with Rule 41 or 43 switch for toggle ability)Ignition protected High-efficiency, low amp motor Non burn-out when dry Stainless steel shaft Includes back flow preventer ISO 8849 and ISO 8846 marine certifications Easy clean snap lock strainer