The Spa Disc Oil and Scum Remover is the easiest way to keep your spa water sparkling clean. It should always be floating in your spa! This amazing product absorbs the oils left from your skin on the water's surface, and helps keep your spa clean. This disc prevents build up of scum lines on your spa. When the disk is full, simply rinse it with water, let it dry, and reuse! This innovative disc can be used for one year before you need to replace it. Keep the water in your spa amazingly clean with the Spa Disc Oil and Scum Remover!