Clogged drains are no match for Flow-Easy® sulfuric acid drain opener. Its proprietary virgin sulfuric acid formula dissolves grease and other organic material fast so your drains open almost instantly. Flow-Easy® is the fast-acting, professional-strength drain opener that plumbers reach for first. But it's still safe enough for home use in all types of drains and toilets, even with septic systems. Flow-Easy® powers through clogs other drain openers can't. And it can be poured into standing water, eliminating the need to bail the sink before using. If you truly want to save time and money, make Flow-Easy® part of your regular maintenance program.