The H1-15CRC is the pinnacle single cartridge filtration systems when it comes to filtration under the sink for municiple mains supplied drinking water. The single housing and compact size make this a great choice for those with limired space. The technologically advanced cartridge ensures that hazardous chemicals such as Chlorine and Chloramine are reduced from your drinking water, along with a monumental amount of other VOC’s and DBP’s (By-products of Chlorination. Chloramine is fast becoming the most important topic when it comes to municipal mains water. Free chlorine has long been the choice of water companies and councils for supply water sanitation. That was until they started to introduce the use of Monochloramine. This has yield significant improvements to expenditure for the supply complanies though unfortunately for the consumer, chloramine poses several health and aesthetic effects from skin & respiratory issues to heavy metal leaching (from old pluming). Aesthetically monochloramine gives a strong chemical smell in the water and when mixed with the additive fluoride, can also increase corrosiveness and has been known to dissolve copper and lead from plumbing. The 0.5uM Catalytic Chloramine Removal Carbon (CRC 2510-P5) denatures and neutralises the monochloramine molecule, breaking it down to simple elements such as water, hydrogen, nitrogen and a small amount of chlorine which is absorbed during the final contact with the carbon. A single pass will significantly reduce all free chlorine, monochloramine, VOC's, THM's and DBP's.