SEAFLO 1100GPH Bilge Pump Automatic Boat Marine Water Pump Low Profile 12VSEAFLO 1100GPH Bilge Pump Automatic Boat Marine Water Pump Low Profile 12V Our best drain down levels ever as low as 10mm or 1 3''. SEAFLO Narrow, Low profile bilge pump fits deep down in small awkward bilge spaces where other pumps won't fit. Compact, Horizontal or vertical mounting, with 360 Degree Discharge for easy remove and replace and leaves the bilge almost dry. Port Type 3 4" (19mm), 1" (25mm), 1 1 8" (29mm) Straight Hose barb or 3 4"(19mm)