Zoeller 73-0001 Model 73 Sump Pump 0.33 HP 115V 1PH 9' Cord AutomaticZoeller Model M73 Sump Pump Description Our Model M73 Sump Pump is designed to remove unwanted groundwater in residential basement sump applications. The 1 3 HP Model 73 is an economical option when a sump pump is required. The Model 73 is compact, lightweight and economical. Additionally it is a fully automatic sump pump with a built in float switch. So, it can be installed in minutes and depended upon for years. The Model 73's switch motor housing