Maximum Operating Temperature 0.8 µm: 55 °C (131 °F) at 2.1 bar (210 kPa, 30 psi) 10 µm: 82 ºC (180 ºF) at 2.1 bar (210 kPa, 30 psi) Maximum Operating Pressure 4 and 13 mm: 5.2 bar (520 kPa, 75 psi) 25 mm PSF: 4.1 bar (410 kPa, 60 psi) at 21 - 24 ºC (70 - 75 ºF) Typical Water Flow Rate mL/min at 3.1 bar (310 kPa, 45 psi) 4 mm, 0.45 µm: 3