Details: 9 Inch Length -- Fits Product: Model 9002MB 'Mini-Blue UV Air Purifier' (2 UV Lamps), Model UV126 'Table Top Air Purifier' (1 UV Lamp), Model 2006AT 'Airtronics UV Air Purifier' (1 UV Lamp) - note: 18 Watt Version, Model AB2009 'Airbox Smoke Eater with UV' (2 UV Lamps), U.S. Navy / USNS Wheeler Stairwell Unit (2 UV Lamps)