Product name: Ph 5 L Reducer For Pool And Spa Improve Water Quality. 100% Natural Ph Regulator Without Chemicals. Universal formula. Universally formulated pH reducer for outdoor pools, heated pools, hot tubs and spas. pH regulator completely free of chemicals harmful to the well-being of bathers. Suitable for water at any temperature. Safe handling without any type of health risk. pH balance. The Nortembio Pool pH reducer lowers and stabilizes the pH of the water quickly and effectively, allowing you to enjoy healthy and safe baths. Its power of regulatory action reaches the right pH level without the need to use conventional toxic elements. Safety for the whole family. In family pools, it is essential to carry out optimal maintenance to ensure the safety of the whole family.