... 3)Filter precision:1,5,10,20micron PP Sediment Filter Cartridge with 5 micron 1.Brief account:New generation spun bonded ... polypropylene cartridges are the best solution for sediment filtration removing rust particles,sand silt and other particulate ... .520 4-1/21, 5, 20, 50600.3-0.5Note:for longer length,pls contac us 4.Max. Operating Conditations:(1 ...