polypropylene melt blown filter cartridge pp melt blown filter cartridge are made of 100% polypropylene without any glue particals. ... the suspended substance,particals and rust in the water effectively.Filter media:PolypropyleneFilter rate:1um,5um,10um,20um,30um,50um.75um ... temperature:52CMax operating pressure:2.0Bar 10 inch pp melt blown filter cartridge