New pump design has higher flow rates due to optimized impeller designs for greater water flowBuilt-in thermal cutoff (TCO) provides added protection for the pump and vesselBack flow prevention reduces the amount of water left over in the bilge to keep it cleaner, longerHidden air vents in the pump body help prevent air locking in the plumbing installation and helps with the check valveThreaded discharge for easier installation and maintenanceCheck valve included with all pumps1,100 g.p.h. pump has 3.7 amp draw @ 12V and 1 discharge outlet; measures 4.4 T x 2.9 W