Check the listing for details. AQUACREST black purification elements and fluoride replacement filter. Color: White, Condition: New. Listed at 99.90 USD. Product Description · [Excellent reduction performance]: Uses natural coconut activated carbon block and food-grade fluoride reducer as filtration media. · [High-efficiency filtration]: Efficiently reduces chlorine, fluoride, heavy metals, taste and odor, sediments, large particles and other contaminants. · [Long-lasting service life]: We recommend you replace filter every 6,000 gallons per pair and replace every 1,000 gallons per pair, which will vary based on water conditions. This filter is not sourced by or sponsored by Berkey®. The manufacturer’s name has been used for reference purposes only. AQUA CREST is an independent brand. · [Risk-free purchase]: If you have any issue about the product, please contact and get solutions right now. · [Compatible models]: A good match for the original brand of black purification elements and fluoride replacement filter. Interchangeable with the Travel, Light, Big, Royal, Imperial and Crown series. AQUA CREST Water Filter Replacement, Compatible with Black Purification Elements and Gravity Filter SystemAQUA CREST Fluoride Water Filter Fluoride / Arsenic Reduction Water Filter, Compatible with Gravity Filtration System