Myers Model 3WHV Series - 3" Solids Handling Wastewater Pump Series, Single-Seal, Horizontal Discharge, 400 GPM The 3WHV Series Solids-Handling Pumps are designed primarily for commercial applications such as: schools, churches, industrial plants, shopping centers, apartments and condominiums, marinas, interstate rest stops, sewage collection systems, campgrounds, motels, restaurants, office & commercial buildings, state & federal parks and treatment plants. This pump can be installed on legs or with a quick-disconnect slide rail system. Its ability to handle 2-1/2" spherical solids makes it ideal for most light to medium commercial installations.