Granular. A strong alkaline compound used in opening sewers and drains by reacting quickly on grease, rags, paper, & other organic material.
-Heats up rapidly & "burns" for several minutes
-Red granular/odorless/pH: 12.9-13.2/USDA: C1/NSF listed
Outstanding for use as a preventative maintenance product that will save time, labor, and money.