H Hydrex™ Comprehensive range of water treatment chemicals to suit all water treatment needs. Sludge treatment Hydrex™ Biocides Hydrex™ offers a range of biocides for many applications. Sludge treatment Hydrex™ Other Water Treatment Chemicals Hydrex™ offers solutions for each specific requirement in terms of chemical water conditioning, including tailor-made formulations. Sludge treatment W Whittier™ Candle Filters The Auto-Shok and Auto-Pulse Filters are classical tubular filters, also known as Candle Filters Filtration
