A concentrated, powerful, and extremely effective toilet fluid for the waste tank. A standard dose of 150 ml of the familiar Aqua Kem Blue or Aqua Kem Blue Lavender works for up to 5 days. When using Aqua Kem Blue Concentrated, only 60 ml is needed for the same period. A 0.78 L bottle of Aqua Kem Blue Concentrated contains a maximum of 13 doses for a total of 65 days, just like a 2-liter bottle of Aqua Kem Blue.