The Aries AF-20-1051 General Purpose Acid Washed Bituminous Carbon cartridge uses acid washed coconut shell carbons to efficiently remove a number of impurities normally found in tap water including chlorine and other organic contaminants while also providing odour control. Carbon filtration is an economical and effective way to clean ordinary tap water of chemicals and other harmful substances. Use an Aries AF-20-1051 General Purpose Acid Washed Bituminous Carbon filter cartridge for cleaner and safer drinking water.