Filters are installed where water free of suspended substances such as sand, limestone flakes and iron oxide is required. Once detached from the pipes, these substances damage or obstruct taps, shower heads and wall boilers. The ONDA filters respond to the need to contain spaces without penalising flow rate performance. The 3/4’‘- 1’‘ – 1-1/4’‘ ONDA filters are available with 60-micron CL7 washable socks, to be thrown in 25-micron CCA7 wire-wrapped polypropylene (50, 10 and 5 microns on request) and 100-micron CX7 stainless steel (25 and 60 microns on request). The cartridge can be easily washed or replaced by opening the original semi-strip closure, which guarantees a perfect seal and makes the use of the clamping keys pass.