Activated Carbon Click Here to View all Carbon Listings CAS#64365-11-3 Technical Granular FormMade from Coconut Shell1 GALLONAPPROX 48 ozMIL-C-10202AGRADE I, II, OR IVPerfect for filtration of Aquariums and Scuba Air. SIEVE PARTICLE SIZE GRADUATION PERCENT BY WEIGHT0.0 MAX RETAINED ON 2.38 MM0.0 MIN TO 2.0 MAXIMUM RETAINED ON 1.68 MM10.0 MIN TO 30.0 MAXIMUM RETAINED ON 1.19 MMSTAIN40.0 MINIMUM TO 65 MAXIMUM RETAINED ON 841 MICRONS2.5 MAXIMUM PASSED 595 MICRONS We sell this item is quarts and gallons. Buyer Pays Shipping.