... -made 4,Got ISO 9001:2008 Certificate liquid filter cartridge Good Gas Permeability. Good Resistance to Corrosion, Heat, ... and Abrasion. Good Chemical Resistance. DescriptionThe stainless steel filter cartridge adopts sintered stainless steel fiber felt, has high-pressure, ... back flushing function7. Adopt woven SS mesh as filter cartridge, with high gas permeability, large dirt holding capacity, ...