Model Number: PT-1557 Brand Name: Puretal Key Specifications/Special Features: Ultraviolet (UV) light treatment is a widely recognized and proven method of disinfection of water and has several advantages over other disinfection methods such as chlorination, ozonation etc.UV light does not add anything to the water, such as undesirable color, odor, taste or flavor, nor generate harmful by products.It adds only energy in the form of ultraviolet radiation.Also, UV disinfection requires only a fraction of the contact times required by other disinfection methodsIt is fast, efficient, effective, economic and environmental-friendly.