Drano has your back with a powerful new formula specifically designed for greasy kitchen clogs. Thanks to its unique churning action and heat, Drano Kitchen Granules work to melt and break down grease, so it?s great for stubborn kitchen clogs. You only need a small amount to get the job done, so one container lasts 10 uses . Safe on septic systems. Works in 15 minutes. Safe on metal and plastic pipes. Destroys tough greasy kitchen clogs. Convenient 17.6 OZ.