Durable Hydro Turbine Runner for Renewable Energy This runner uses a 3 to 10 blade configuration and durable stainless steel construction for renewable energy projects that need steady, long term output. Technical Specifications Blade Configuration 3-10 Blades Durability High Application Renewable Energy Material Stainless Steel ZG0Cr13Ni4Mo Key Features 3-10 blade configuration for different heads Durable stainless steel construction Built for renewable energy projects