LSE Lighting compatible UV Bulb for 18W RU1803 SUV018 Savio Filter Brand: LSE Lighting - Bulb Type: Ultraviolet Germicidal for Water Sterilization Filters Wattage: 18W, Base: 2pin (2pins on one END - twist-n-lock style) Length: 14 1/4" This UV replacement lamp by (LSE Lighting brand) is 100% compatible for use with 18W SUV018 UVinex Savio Filter. All lamps listed are compatible brand (LSE Lighting) UV products. We do not sell Savio Engineering, Inc and UVinex brand lamps. All Savio Engineering, Inc and UVinex brand names, trademarks and logos are property of Savio Engineering, Inc and UVinex.