Tested & Certified
Most Sprite products are NSF Certified to standard #177 for shower filtration. Don't be misled by companies who claim NSF Certified Filtration Media. It's not the same as being certified to Standard 177!
In the beginning, Sprite filters remove free chlorine at an efficiency rate of 99%. Sprite cartridges use a patented filtration media that converts chlorine into a harmless salt that is found frequently in beauty products.