The Liberty Pump SumpBox SBX35 is a fully assembled, professional groundwater protection sump pump system with a 1/3HP sump pump and a 41 gallon-basin-capacity. The Liberty SBX35 SumpBox sump pump system is designed for new home construction and requires no tools to open. 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. It has a max shut-off head of 25', a maximum flow rate of 35 GPM at 10' and can handle 1/4" solids. The Liberty Pump SumpBox SBX35 sump pump system has a discharge of 1-1/2" female NPT and is equipped with a safety overflow feature.