This listing for watermark certified Ultraviolet water filter system SHIELD brand parts only.

Please choose relative spec of power to get proper replacement parts.

All tube life rated for 8000 hours. Ballast have 1 year warranty. No warranty for Glass tube(we responsible for arrive damage)

Parts always have warranty label on it and may not remove in any circumstances. Any warranty label remove may void this warranty.

Photos of warranty labels always need to be provided with warranty application.

SHIELD watermark UV system have spec of 6w, 25w, 40w, 55w. You can always check spec on old light tube.