... Standard:GB9688-88 Y type filter,stainless steel strainer,y type strainer Y type filter,stainless steel strainer,y type strainerFilter container material:SUS304 ... also comply with China GB9688-88 standard Outstanding features:high shuoff rate,high flow,low pressure difference,good stability,compatibility,can get rid ... infusion,purifying water,sterlizing and clearing for bioengineering Y type filter