Zep 12-Pack 32-fl oz Acidic Toilet Bowl Cleaner | ZUATBC32CPWorks Fast: Quickly removes rust, dissolves organic stains, and eliminates hard water residueEasy to Apply: Angled neck makes under-the-rim application easy, while thick gel formula clings to vertical surfacesPowerful Formula: Strong 10 percent acid gel formulaFor use on: Toilet bowls and urinals, safe for septic tanks, drain lines, and water treatment systemsNot for use on: sinks, bathtubs, countertops, floors or any enameled surfacesFeaturesAntibacterialNoOperation TypeManualApplication MethodSqueeze bottlePackage Quantity12DeodorizingYesScentAcidicFor Use in BathroomsYesUnit of MeasureFluid ounce(s)FormGelUnit of Measure Quantity32Kills VirusesNo