Replacement UV Lamp Bulb / 17 1/8 Inches / 4 Pins On One End / 6 Gallon / Drinking Water System / MIN-6 Replacement for use with MIN-6, ATS4-436, LUV-74, EP1X6 - L14UT4L, and SL/8 units Length: 17 1/8" Wattage: 20W Pin Configuration: 4-Pins on One End Brand New Bulb