Seaflo Timer 13B Auto Bilge Pump 12V 4161 LPH (11 | 4Boats

Seaflo Timer 13B Series automatic bilge pump — 4,161 LPH (1,100 GPH) at 12V, designed for reliable, compact marine dewatering without a float switch.

• 4,161 LPH (1,100 GPH) flow rate; 12V supply
• Outlet diameter 1 in (25 mm) or 1‑1/8 in (29 mm)
• Timer‑sensing auto operation: impeller pulses every 2.5 minutes and runs until water is cleared
• Split quick‑connect joint for seconds‑fast motor removal without disturbing base or plumbing
• Anti‑airlock protection, moisture‑tight seals and tinned marine‑grade wiring
• Larger impeller and robust motor for improved performance
• Compatible with cartridge pump replacement motors (sold separately); straight or 90° port options

Compact, easy to service and built for marine environments — ideal for boats needing dependable automatic bilge control. Explore our Automatic Bilge Pumps.