Landshark External Water Pumps are are inexpensive external pumps that are designed for low maintenance, vibration-free operation. These premium pumps are built to last, featuring thermal overload and high-quality seals and bearings for long, efficient motor life. Hydraulically self-balancing impeller provides vibration-free operation Sealed self-lubricating direct drive motor Removable oversized debris basket for clog-free operation Clear quick-release cover makes accessing basket easy Thermal sensor keeps pump from overheating Two-year warranty Pump size, no larger than 21"L x 7.5"W x 10"H Note: For LS-2000 and LS-3300 pumps to go to 2", you would need an adapter that works up from a 1.5" slip. This would require two or more steps. One way would be to use both a 478-015 adapter to go from 1.5" slip to 1.5" FPT and then to use the 436-213 adapter to go from 1.5" MPT to 2" SLIP. For LS-4600 and LS-5500 pumps, it is simpler. Just use the 436-213 adapter, but be sure to add a union as well so you can remove the pump for repairs etc. Model Rated Voltage Rated Watts Rated Amps Input/Output Recommended Hose/Pipe Max Head Max Flowrate LS2000 120V /60Hz 250 3.0 1.5" Slip 2" Diameter(Use 437-251 fitting with short length of 1.5" pipe) 28' 2000gph LS3300 400 5.0 35' 3300gph LS4600 550 6.2 1.5" FPT1.5" Slip 32' 4750gph LS5500 1100 9.2 40' 5575gph