Tile & Grout Prespray

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A Hi Alkaline Tile, Grout, Cement Cleaner & Alkaline Booster. Powered by Crystal Boost Cleaning Pearls. Zerorez Tile & Grout Prespray changes the game on nasty grimy tile & grout l ines. It has a very fast dwell time to reach its high effectiveness and although a CRB can be used for extremely grimy grout, it is rarely needed. Let Zerorez Tile & Grout Prespray do the work for you so you can experience truly just rinsing the grout lines clean. Zerorez Tile & Grout Prespray is extremely effective for outdoor power washing applications as well! Show more