Replacement Filters

STERASYL™ At the heart of all Doultons filters is the Sterasyl™ ceramic. The ceramic is impregnated with silver to make it self-sterilising. Silver inhibits the growth of bacteria. Sterasyl™ ceramics have a tightly controlled complex pore structure, which has unparalleled filtration properties. Sterasyl™ is effective in both gravity and pressure filters. Benefits: With its Absolute filtration rating (defined as >99.99%) of 0.9 microns, Sterasyl™ is highly effective against particulate contamination, pathogenic bacteria, cysts etc.

SUPER STERASYL™ For use with / Big Berkey/ SS4/ SS2/ LP2/Travel Pure/ The Sterasyl™ ceramic is filled with granular activated carbon to produce the Super Sterasyl™ filter element. Among other things, activated carbon is very effective at removing chlorine and organics from water. Super Sterasyl™ uses granular activated carbon instead of an activated carbon block in order to give superior flow rates in a gravity filter. Granular carbon is not as effective as a carbon block under pressure conditions. Therefore, in a pressure filter, Supercarb™ should be used for chlorine and organics removal. Benefits: Super Sterasyl™ has all the benefits of Sterasyl™ (removal of particles, pathogenic bacteria, cysts etc.), with additional chlorine and organics removal capabilities.

ULTRACARB™ For use with / HIP / HCP / HIS/ The Sterasyl™ ceramic is fitted with both an activated carbon block and an ion exchange resin insert to produce the Ultracarb™. Among other things, activated carbon is very effective at removing chlorine and organics from water. The ion exchange resin specifically removes lead from water. Ultracarb™ is designed to be used in pressure filters (on a mains water supply), not in gravity filters. Benefits: Ultracarb™ has all the benefits of Sterasyl™ (removal of particles, pathogenic bacteria, cysts etc.) with additional chlorine, organics and lead removal capabilities.