Award winning Seagull water purifiers are a beautiful combination of Seagull IV X-1F Water Purifier form and function, Seagull IV water purifiers combine our advanced “Structured Matrix” technology with the strength and endurance of modern materials. All Seagull IV purification systems are independently certified to meet EPA guide standard protocol for microbiological purifiers against bacteria, cysts and viruses. Plus, Seagull IV systems excel at removing chemical and aesthetic contaminants including herbicides, pesticides, chlorine and foul tastes, odors and colors.