Maximum Operating Temperature 25 mm PSF: 55 ºC (131 ºF) at 2.1 bar (210 kPa, 30 psi) Maximum Operating Pressure 13 mm: 6.3 bar (630 kPa, 90 psi) 25 mm PSF: 4.1 bar (410 kPa, 60 psi) at 21 - 24 ºC (70 - 75 ºF); 2.1 bar (210 kPa, 30 psi) at 55 ºC (131 ºF) Typical Water Flow Rate mL/min at 0.7 bar (70 kPa, 10 psi) 13 mm, 0.2 µm: 17 13 mm, 0.45 µm: 28