Fluval 3w In Line Clarifier UV Bulb Lamp Replacement A19998 Fits A198 Lasts 3Yrs
Part Number: A19998. For use with the A198 Fluval 3w In-Line UVC. 3w UVC Lamp. Its a CCFL lamp (Cold Cathode Fluorescent Light) so runs cooler than a traditional fluorescent lamp and therefore lasts significantly longer.