Doulton® Biotect® Ultra (2501) - One

The Biotect® Ultra is Doulton’s hero water filter. Tested and certified by NSF to NSF/ANSI Standards 42, 53 & 401 (in our Kingfisher Biotect® Ultra Inline Water Filter System) and NSF/ANSI/CAN 372, it is designed to fit into all Doulton under sink water filter systems and our tap-mounted countertop filter systems and is compatible with the Kingfisher, Doulton DUO and Doulton TRIO systems. Using natural materials, this ceramic water filter, with an activated carbon core, enhances your water quality by reducing a range of common contaminants whilst retaining healthy minerals - leading to smoother, cleaner, fresher water in every drop. The Biotect® Ultra reduces up to 99.99% of common contaminants, including the following in varying levels which can be viewed on our performance claims table here: Microplastics Chlorine and monochloramine Bacteria and cysts Insecticides and herbicides Heavy metals such as lead, cadmium and mercury For full information on our testing data for the Biotect® Ultra and other filters in our range, please visit our test data page. You can also view comprehensive test results for this filter by clicking here. If limescale is an issue in your water, the Biotect® Ultra SI filter may be a more fitting option, it offers the same protection against contaminants with additional limescale inhibition. The Biotect® Ultra SI filter is also compatible with all Doulton under sink and tap-mounted countertop systems. You can also take our water quiz, to find out the best fit for your needs.