High-quality materials reduce chlorine, sand, heavy metals, rust and sedimentName: Compatible with BB9-2 water filterEasy installation Just connect the black carbon filter with the fluoride filter.Size: Height 250mm * Diameter 60mm/9.84*2.36inchHigh cost performance More reasonable supply.BB9-2 filter: Excellent quality and affordable price. To achieve better performance, we recommend replacing the filter every 6000 gallons. However, this may vary depending on your water conditions.Precise design, replaces Berkey, no water leakage.【 High efficiency filtration 】 BB9-2 filter: Using high-quality natural coconut shells as raw materials, and using lead-free and BPA free materials to produce the filter shell, it integrates adsorption, filtration, interception, and catalysis, effectively removing organic matter, residual chlorine, and other radioactive substances in water, and has the effects of decolorization and odor removal. 【 Brand Compatibility 】 BB9-2 Filter: The interface design is precise, and it is tightly matched with washers and butterfly nuts to prevent any leakage. It can perfectly fit the original brand and can be interchanged with gravity filtration systems such as Travel, Big, Royal, Imperial, Crown series, Propur Traveler, Nomad, King, Big series, etc. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.