For just pennies a month, K-67 eliminates slow and sluggish drains in your home by removing layers of build-up in the trap and along the entire length of pipe. K-67 works through bacterial and enzymatic action. It is non-corrosive and will not damage pipes or burn skin. Apply monthly to keep pipes and traps flowing freely. Use as needed to reopen slow and sluggish drains. Keeps pipes and traps clear and clean. Safe for use in all plumbing. Certified biodegradable. Use monthly. Easy to use.