13 watt UV filter. Bought this about 5 years ago and maybe used it once. Comes with a spare bulb.
$10
Littleton, MA
Amazon.com : SUN JUP-23 UV Sterilizer Submersible Pump, 13W : Aquarium Filters : Pet Supplies
Amazon.com : SUN JUP-23 UV Sterilizer Submersible Pump, 13W : Aquarium Filters : Pet Supplies
www.amazon.com
$10
Littleton, MA