filter foam , used for air conditioner, water filter, water treatment. partname filter foam density21kg/m3 porosity10ppi-100ppi colorred,green,yellow,black,etc usagefish pond,air conditioner, air filter certificate CA117,BS5852, SGS, REACH filter foam , which used for many filed , we also have sold this type of foam to USA , company is Henkel of America which is very famous all over the world .we ...