UV Superstore UV 4000 LampUV Superstore Inc. provides high quality replacement UV lamps and quartz sleeves for use in the UV4000 water treatment system. These lamps are manufactured in the USA and are designed for the wastewater treatment industry. Our UV lamps are new, not remanufactured, and meet or exceed OEM specifications. Contact UV Superstore directly at 888-UV4-WWTP (888-884-9987) or visit us on the web at www.uvsuperstore.com. UV Superstore is the One Source for All Your UV Needs!