Original equipment manufacturers (OEM) replacement bulbs for Classic Aqua UV sterilizer. Available in 25, 40, and 57 Watts.
25 watt - 17 -3/8" L
40 watt - 33-3/8" L
57 watt - 17-3/8" L
It is recommended to replace UV sterilizer bulbs every 12 months, don't wait until your sterilizer loses efficiency to replace it!