Seagull IV X-2KB is an award winning two gallon per minute undersink inline purifier for use with your existing faucet. A beautiful combination of 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, for great tasting water on demand. Seagull IV X-2KB features a stainless steel pressure vessel, "Quick and Easy" pressure proof installation lines, Structured Matrix cartridge, and Marine/RV mounting bracket.