The Liberty Pump SumpBox SBX280A is a fully assembled, groundwater protection sump pump system with a 1/2HP sump pump and a 41 gallon-basin-capacity. This sumpbox sump pump system features a Liberty Pumps Alarm ALM-2 with a vertical float. It has a max shut-off head of 37', a maximum flow rate of 56 GPM at 10' and can handle 3/4" solids. This sumpbox sump pump system features a pump cover securely bolted with stainless steel fasteners and an easy to service float switch, located in holders under the access cover. The Liberty SBX280A SumpBox sump pump system is designed for new home construction and requires no tools to open. The Liberty Pump SumpBox SBX280A sump pump system has a discharge of 1-1/2" female NPT and is equipped with a safety overflow feature.