... Standard:GB9688-88 Y type filter,stainless steel strainer,y type strainer Y type filter,stainless steel strainer,y type strainerFilter container material:SUS304 ... ,SUS316L(FDA) Filter element material:import from Milipore Pall of America,accords with the safety requirement ... infusion,purifying water,sterlizing and clearing for bioengineering Y type filter