Features:

Emergency pump is small size and light weight
Decent 1100 GPH for such a small water pump
12V capability makes bilge pump versatile.
Internal float switch,no need to buy another float switch. 
Emergency backup pump works great even when fully submerged.

Parameters:

Flow Rate: 1100GPH;
Volt: 12V;
Current: 3.8A;
Head: 3.0M/9.84ft;
Wire Lead: 1m/3.28ft;
Outlet Diameter: 29mm/ 1-1/8";
N.W.:0.47KG/1lbs

Package Included:

1 pc of 1100GPH emergency sump pump

Tips:

Pls make the bilges keep clean,make sure gunk does not clog the pump. Maybe you can surround it with a fine wire mesh that kept the gunk out.