PP melt blown filter cartridge: (1)Size:10", 20",30", ... melt blown filter cartridge made from nonpoisonous and tasteless polypropylene particle.Main characteristics: High filter precision,large flow & slight pressure ... ,high capacity of removing dirties,small size,high pressure-resistance,corrosion-resistance.Application: (a)Apply to ... accuracy when the flow of the value. PP melt blown filter cartridge