HTH 16 Oz. Spa Filter Cleaner

When used as directed, this HTH Spa Filter Cleaner helps your filtration system work more effectively, which not only helps keep the water looking clean and clear, but also helps the filter last longer. HTH Spa Filter Cleaner is great for all spas, including bromine, chlorine, and biguanide. For best results, use HTH Spa Filter Cleaner as part of your regular HTH Spa care routine, or every 90 days when you change out your spa water. Remove cartridge(s) from your spa filter and hose off with water to remove loose debris. Fill a clean plastic container, bucket, pail, or garbage can with 4 gallons of water. Empty the contents of the HTH Filter Cleaner bottle into the water to create the cleaning solution. Place the cartridge(s) upright in the solution and soak for 3 to 6 hours or overnight. Remove cartridges(s) from the solution, hose off and replace in your spa filter.