Drano Max Gel Clog Remover is the #1 Selling Gel Drain Cleaner*. The thick bleach formula in Drano Max Gel Clog Remover cuts right through standing water clinging to your toughest clogs to blast them fast. It works great to remove hair soap scum and other gunky clogs. Conquer tough clogs whenever they happen. *SC Johnson & Sons Inc. calculation based in part on data reported by Nielsen through its ScanTrack Service for the Drain and Disposal Cleaners category for the 26-week period ending 09/26/2020 for the total U.S. market xAOC according to the Nielsen standard product hierarchy. Copyright 2020 Nielsen Consumer LLC.