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. Each of the two bottles contains 80 oz of Drano Max Gel Clog Remover . so you’ll be ready to 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.