General description The 2 Pack NSF/ANSI 42&372 Certified Water Filter is designed for families using substandard drinking water, making it ideal for home, travel, and outdoor activities. The WD-BB9-2 black water filter utilizes natural coconut shell activated carbon and a BPA-free housing to effectively reduce contaminants such as chlorine, sand, rust, odors, sediment, and large particles, while improving the taste of the water. It provides clean and safe water, ensuring a stable and fast flow rate without leaks. Technical specifications Filter lifespan: 6,000 gallons (22,712 liters) Dimensions: Not specified Weight: Not specified Compatibility and accessories Compatible with BB9-2 black purification element Interchangeable with Travel, Big, Royal, Imperial, Crown Series, Propur Traveler, Nomad, King, Big Series, Doulton Super Sterasyl, and ATC Super Sterasyl filters Compatible with W9361122 and W9361123 systems Usage For best performance, it is recommended to replace the filter every