Dual Pump Design Patented "Trapezoid" Tank 100% Self-Draining System Microprocessor Control System Variable Speeds Complete Self-Diagnostics "Change Water" Notification "Low-Water" Detection System Minimum Tank Seams Multi-Sided Discharge Removable Discharge Performance Plates Patented "Plug & Play" Serviceability Patented "Ribbed Vacuum Breaker" Auto Drain/Auto Fill   Copyright 2008 SteelKor