"No Other Water Filter Reduces More Contaminants Than Multi-Pure" Multi-Pure specializes in the production of solid carbon block filters and drinking water treatment devices that reduce contaminants of health concern. Simply stated, Multi-Pure Drinking Water Systems is strongly committed to the water treatment industry, and we welcome the opportunity to meet your needs.Multi-Pure specializes in the production of solid carbon block filters and drinking water treatment devices that reduce contaminants of health concern. Simply stated, Multi-Pure Drinking Water Systems is strongly committed to the water treatment industry, and we welcome the opportunity to meet your needs.Multi-Pure Drinking Water Systems are one of the most effective, economical, convenient and reliable home water filters available today.A recent study from the Water Quality Association (WQA) reveals that the top two contaminants which Americans are concerned about in their drinking water are LEAD and ARSENIC. Multi-Pure has been the leader in the drinking water industry with products which treat both lead and arsenic.