... 4A,5A, 13X drying,absorbent,cleaning ect. ISO9001:2000 product2.0 to 2.8mm molecular sieveProduct descriptionMolecular sieve is a material containing ... (pore size 5 Å): Adsorbs normal (linear) hydrocarbons to nC4H10, alcohols to C4H9OH, mercaptans to C4H9SH. Will not adsorb isocompounds or rings greater ... the liquid hydrocarbon Package can meet individrual requirements 2.0 to 2.8mm molecular sieve