Filter ratings (micron) : 1 , 3 , 5 , 10 , 20 , 30 , 60, applicable ph value : 1-13, maximum pressure, difference against which it can resist (25 degree c), positive direction : 0.42mpa, reverse direction : 0.42 mpa, working temperature less than 70 degree c, (pressure difference : 0.25mpa), steam sterilizing at 125 degree c, 0.5h each time.\n \ncharacteristics: high filtration precision, large flux and small pressure difference precision, long service life\nlength:5",9.87",10",19.8",20",30",40", precision: 0.5 micron, 1micron, 5micron. etc.