Triple-action filtration system consisting of a granular activated carbon (GAC) column derived from coconut shells with high adsorption capacity and a Melt Blown polypropylene sediment filter, with Ag technology based on silver salts providing bacteriostatic action. The granular activated carbon structure provides high adsorption capacity for organic substances and free chlorine, making the filter particularly suitable in the presence of high concentrations of chlorine and organic compounds in water.