... Cotton Filter Cartridge Specification: length:10,20,30 inch accuracy:1,5,10... as follows.... PP ... and so on.2 Specification:Length :10",20",30",40"Diameter : Outside diameter 63mm, Inside diameter ... 28/30mmAccuracy :1,5,10,20,30,50,75,100µmSpecial specification can be customized3 ... under 0.15kgt/ cm2 pressure drop and 10 inch long filter module (b) Original accuracy filtering efficiency ...