1.material:PP/PE 2.length:10'',20'',30'',40'' 3.dia:ourside diameter 65mm, inside diameter 30mm 4.micron:5u,10u,25u,50u,75u.. 1.material:PP/PE2.length:10'',20'',30'',40''3.dia:ourside diameter 65mm, inside diameter 30mm4.micron:5u,10u,25u,50u,75u,100u,150u,200u5.can be customised activated carbon filter cartridge