... or residential water softener. 2.High pressure 3.high capacity 4.ISO9001:2008 water filter/softener FRP pressure tanks industrial 30 ... temperature is less than 49°C.4. FRP tank has upper and under openings, and flange connections, which can form a complete ... (upper and under openings and side openings), 2.5’’, 4’’, 6’’, 16’’, 18’’ flange.6. Accessories: upper and under distributor, black cock ...