Maximum Operating Pressure 58 psig @ 77°F (4 bar @ 25°C) Maximum DiFerential Pressure 28 psid @ 77°F (1.9 bar @ 25°C) Maximum Operating Temperature 104°F (40°C) Absolute Removal Ratings (nm) 5, 10, 20, 50, and 100 5, 10 10, 40 Filter Cartridge Integrity All Filters are Tested prior to release