. Light duty drain cleaning machine. For cleaning floor drain, roof vents and sink lines up through 4" in diameter Key features & benefits:Specifications:With quick-changing feature the drum is interchangeable Air-operated foot switch Built-in GFCI on cord to protect operator from electrical shock Premium quality cable for longer life Best for 1" (25mm) 4" (100mm) drainsDrum Size: 330mm x 160mm. Standard Cable :1/2" x 50' (13mmX15m) Motor :250W, 220V/50Hz or 110V/60Hz