... passed the SGS,ROHS,UL,CA117,BS5852 Certificates.1) Filter foam2) material: 100% polyurethane3)Reticulated and open cell4) ... water permeabilityFilter foamFilter foam is widely used for aquarium filter, air filter and other filtering business.Pu foam,Polyester foam, ... request 3color:customers' requirement 4packing:poly bag 5 Density:15-100kg/m³ filter foam,aquarium foam,reticulated sponge,pond sponge