The complete range of MP Filtri tank accessories for hydraulic circuits is composed of: breather filters, filler and breather filters, filler caps, visual and electrical level indicators, pressure gauges selectors, flanges for fixing the oil tubes on the tank cover and inspection doors. In particular, filler and breather filters have a dual function at the tank inlet: the filtration of the incoming air and the pre-filtration of the fluid through the basket, in order to prevent the entry of foreign bodies during the filling or refilling operations.