Check the listing for details. British Berkefeld W9361136 1.58 Gal Countertop Gravity Water Filtration System. Color: Silver, Condition: New. Listed at 250.00 USD. NSF Certified Water Filter: For 1-2 People You can enjoy filtered drinking water just about anywhere with this Stainless Steel Gravity Filter System! No plumbing or electricity required, just fill the upper chamber with untreated water, and the filter will reduce common contaminants, like chlorine, organics and heavy metals from your water. Features of the Duchess Gravity Filter: Includes 2 Ultra Sterasyl Filters - This top-rated ceramic filter element incorporates granular activated carbon and media to efficiently reduce trace organics, enhanced organics, pharmaceuticals, chlorine, heavy metals and microplastics. It helps improve taste and odor, too.They are NSF Certified for 42, 53, and 372 codes; WRAS approved.. Compatible with the Ultra Fluoride Filters - Sold separately.