iSpring FD15 DeIonization Replacement Filter Fit RO/DI Water Filter System for Aquarium, 10" x 2.5", 1 Count

• Advanced DI Filtration: Utilizes ion-exchange resins to remove mineral ions, leaving water free of hardness and preventing scale buildup. It does this by replacing them with hydrogen (H+) and hydroxide (OH-) ions, which combine to form water (H2O) • Effective TDS Reduction: Lowers Total Dissolved Solids (TDS) to 0-1 ppm, delivering ultra-pure water ideal for sensitive applications • Universal Fit: Designed to fit most 2.5" x 10" RO DI water filter systems, ensuring easy compatibility with a variety of setups • Spot-Free Results: Prevents water spots after drying, making it perfect for washing applications where spotless results are crucial • Durable & Reliable: Provides long-lasting performance, ensuring consistently high-quality, deionized water