Zeolite powder LSX is type X crastal with low SiO2/Al2O3 ratio.
Zeolite powder MSX is the type X crystal with lower SiO2/Al2O3 ratio.
Synthetic Zeolite Powder 13X is the sodium form of the type X crystal and has much larger pore opening than the type A crystals.
Synthetic Zeolite Powder 5A is an alkali metal aluminosilicate. It is the calcium form of the type A zeolite with effective pore opening of about 5 anstroms (0.5 nm).
Synthetic Zeolite Powder 4A is an alkali metal aluminosilicate. It is the sodium form of the type A zeolite with effective pore opening of about 4 anstroms (0.4 nm).
Synthetic Zeolite Powder 3A is an alkali metal aluminosilicate. It is the potassium form of the type A zeolite with effective pore opening of about 3 anstroms (0.3 nm).