3A Molecular Sieve is potassium-based adsorbent. It will selectively adsorb molecules smaller than 3 angstroms. Mainly remove moisture and impurities from various industrial gases and liquids. There are two shapes-beads and pellets for choice.

4A Molecular Sieve is one of the most widely used molecular sieve in industry. It will capture molecules with a kinetic diameter smaller than 4 angstroms, while rejecting those with a larger diameter. It’s used to remove moisture from liquids and gases. It has reliable adsorption speed, higher resistance quality and stronger adsoprtion.

5A molecular sieve is the calcium form of the type-A crystal structure with an effective pore opening of 5 angstroms. It can absorb the molecules which diameter is not more than 5 angstroms. It is dissolved in strong acid or strong alkali and decomposes, but insoluble in water and organic solvents.

13X molecular sieve is a highly porous sodium form of zeolite X for the large aromatic molecules and branched-chain hydrocarbons. It is a three-dimensional crystalline structure which made of silicon dioxide and aluminum oxide, with a pore diameter of 10 angstroms. Both the bead and cylinder are popluar.