Steril-Aire 22000100 ,44000106 ,RGTS20HO ,Premium Compatible UV Germicidal Replacement Lamp Effective Hours Rating: 12000hrs - Ultraviolet Germicidal Light Bulb Lamp for Steril-Aire 22000100 ,44000106 ,RGTS20HO Bulb Type: T5 Style Quartz Glass Highest Quality Comatible Replacement for less than a Third of the Cost! One Year Warranty!