Replacement bulbs for 9W and 18W (Generation 1- 2018 and before; Generation 2- 2019 and after) Pondmaster Clearguard ultraviolet clarifiers. Ultraviolet light is used to clarify green water by killing bacteria and algae without harming your fish or plants. Make sure that your Clearguard filter continues to function with these genuine replacement bulbs.
100% designed and made in the USA!
Manufactured by Danner.
When handling glass UV bulbs be sure to wear disposable vinyl gloves.