Feature:The pp cotton filter out element, also called the melt-blown pp filter element, is a tubular filter detail made from non-toxic and odorless polyester fiber particles by way of heating, melting, spinning, traction, and forming; if the uncooked material is particularly polyester fiber, it's going to It is named PP soften blown clear out element. Brand new packaging, authoritative fine certification. Size:10 inch Material:Polypropylene PP cotton weight:100g/130g (error ±4g,) prompt: 5 Micron Filter core pass nicely with for Primary filtration, existence expectancy 3~6 months 1 MicronFilter coresuit forThird point filtering, lifestyles expectancy 6 monthsPackage:4Pcs Filter core