Disposal Continuous-feed model - activates with the flip of a wall switch Heavy-duty 3/4 HP induction motor - fewer moving parts for a longer, more reliable life QuietGrind 100 Sound Shield Package Built-To-Last Features Stainless steel grinding chamber, grinding elements and sink flange - for years of rust-free, dependable service Rust-resistant stainless steel swivel impellers - rotates 360° to continuously move food into the shredding zone for jam-free grinding Exclusive Dependable Performance Warranty - 4-year full in-home warranty covers parts and labor