Pack of 4 BERKEY BB9-2 black activated carbon replacement filters for gravity water filtration system (black)

[Filtration Accuracy Down to 1 Micrometer]: For optimal filtration, this filter element uses high-quality coconut shell activated carbon, with a filtration accuracy down to 1 micrometer. It effectively removes impurities such as sand, rust, sediment, odors, etc., while efficiently absorbing residual chlorine, with a removal rate exceeding 99%. [Compatible Models]: This filter can replace the original water filter. It is compatible with gravity filtration systems, including the Travel, Grand, Royal, Imperial, and Crown series. The precise design of the washers and wing nuts ensures a secure connection and prevents leaks. No priming is required. It can be installed and used immediately after replacement, eliminating the need for pre-rinsing. No low flow issues. [Long Lifespan]: To extend the life of your unit and achieve optimal performance, we recommend replacing the filter every 22,700 liters (6,000 gallons), depending on your tap water quality. Please note that you must fully immerse the carbon filter once a week for the drip filtration system to function properly. [Affordable and Economical]: Why pay four times more for a well-known brand? Our filters offer the same level of filtration and performance at a more affordable price. By choosing us, you benefit from high-quality water filtration at an accessible price. [Note]: Before installing the filter, soak and clean it to remove any manufacturing residue. Color: Black. Material: Coconut shell activated carbon. Package Contents: 4 water purification filter elements. Only the above-mentioned contents are included. Note: The color of the item in the photo may slightly differ from the actual product due to lighting and your monitor settings. A margin of error of +/- 1 to 3 cm is possible.