Technical specifications – Filter head: Loaded Polypropylene (PP). Filter body: Transparent Styrene acrylonitrile resin. O-ring: EPDM rubber. Operating pressure: max. 7 bar. Operating Temperature: 0°C – 50°C min./max. Maximum water hardness: 50°F (10°C) (500 ppm CaCo3); Capacity: 1000lt/h; Storage time: max. 12 months. Connectors: in/out 3/4 inch (19.05 mm) MF thread. Not to be used for drinking water. The water can be heated up to 75°- 80°C, above this temperature the polyphosphates gradually lose their effect.