Spa Essentials Filter Cleaner provides spa owners with an effective way to clean and rejuvenate their filtering system, resulting in much-improved water quality. The problem is that filters slowly get clogged by dirt, dead algae, greases, oils, and other organic material, losing its ability to work properly. Filter Cleaner solves this problem by chemically breaking down these deposits to restore the filter to like-new efficiency. This cleaner will allow you to spend more time in your spa, and less working on it.