Amiad Opera Mini Sigma Self Cleaning Screen Filters are used for trouble free running of raw water filtering systems, for landscape irrigation and also for rain water based harvesting projects. No electrical energy is needed to operate such filters. These multi grade sand filters use microfiber based filtering medium. Maximum flow rate of Amiad Opera Mini Sigma Self Cleaning Screen Filters is 50000 m3/h. Developed from stainless steel, these are offered in 2 inch, 3 inch and 4 inch size options. Polymetric design of these products simplifies their installation process. Long working life and reliable filtration method are their key features.