zeolite catalyst 1.ISO9001;2000 2.type:3A, 4A,5A, 13X ... 3mm ect 4.Drying, purification of air ect Product descriptionZeolite catalyst is often utilized in the industry, especially for the purification ... or heating under high vacuum.3A (pore size 3 Å): Adsorbs NH3, H2O, (not C2H6), good for drying polar liquids.4A (pore ... the liquid hydrocarbon Package can meet individrual requirements zeolite catalyst