Flotec Cast Iron Effluent Pump - 1 1/2in. Discharge, 4020 GPH, 1/2in. Solids Capacity, 1/2 HP, Model# E5005TLT Perfect for septic tank systems where effluent needs to be pumped up to a tank or leach field Capable of handling gray water produced by laundry, bath and dishwashers Rugged cast iron construction and rustproof impellers for longer pump life Not for pumping flushable waste, such as sewage