The cartridge filters are installed where water must be free of suspended substances such as sand, limestone flakes, and iron oxide. Once detached from the pipes, these substances damage or obstruct taps, shower heads and wall boilers. The Normal 1-1/2’‘-2’‘ F series filters are located where significant quantities of filtered water are required (e.g. condominiums, industries, communities) and are equipped only with stainless steel cartridges. The cartridge can be easily washed or replaced by opening the original semi-fold closure, which guarantees a perfect seal and makes using the clamping keys obsolete. The standard filtration degree is 100 microns; 25, 60, 200, 300, 500 and 1000 microns are available.