... % polypropylene without any glue particals.It has depth construction with three layers from inner to outer,depth filtration inside,coarse fiber ... rate:1um,5um,10um,20um,30um,50um.75um.100umLength:5",10",20",30",40",or any other size customer need.Outer ... size customer needMax operating temperature:52CMax operating pressure:2.0Bar 10 inch pp melt blown filter cartridge