The Mighty Pure Ultraviolet Purifier from Hauppauge, N.Y.-based Atlantic Ultraviolet Corp. combines value and superior quality. This stainless steel pressurized purifier is adaptable to high-purity and potable water supply systems. The units can treat 2 to 20 gallons per minute (120 to 1,200 gallons per hour). Two features include an exclusive Easy-Off Retainer Cap, which enables effortless lamp replacement without shut down of water pressure or drainage of the tank, and a drain plug that allows in-place drainage of the purifier chamber.