Our toilet bombs work a treat in any type of toilet! Great for grey water tanks as well. Simply pop one in the bowl of the toilet (not in the system) and it will fix up on its own. Wait a few minutes until it has done its thing and then you use the toilet brush to go around the rest of the toilet with the residue of the bomb. No more need for toxic toilet cleaners or bleach! Our toilet bombs do not come with packaging, they sell best in a clear glass jar. Ingredients Bicarb soda, citric acid, castile soap, essential oils