filter cartridge 1.cartridge length:5'',10",20",30", 40" 2.inner dia.:28 mm,outside dia.:63 mm 3.max working temperature:60 filter cartridge water treatment accessory pp filter cartridge A. Product description:PP filter cartridge is to use avirulent and insipidity polypropyleneparticle, by heating melting and silk spray, traction, acceptingforming tubular filter, it has characteristics like large ...