Color-changing formula makes it easy to tell if the product is working. A vibrant red color means everything is working as it should; a yellowish hue means more SpaBoss Filter-Free needs to be added. This special SpaBoss product is a performance enhancer and a pH indicator.
By adding the granular filter cleaner product to your hot tub, you will be allowing your hot tub filter to work at its best. This filter cleaner works quickly to remove rust, scale, oils, minerals, and other contaminants from the filter. Regular rinsing sometimes cannot remove everything from the folds of the filter, so use SpaBoss Filter Free to easily return to your filter to like-new condition.
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