Pondmaster UV Replacement Bulbs for Clearguard Pressure Filters Model:9W Bulb (Gen 1&2) Built into the riser is

Built into the riser is a diverter valve allowing for flow adjustments as well as the splitting of the water's stream allowing you to run both the fountain and a secondary feature if desired

When used with other floating fountains on the market

Also can use underwater to light up waterfalls

beneficial bacteria and other pond life

and 3-tier

Pondmaster UV Replacement Bulbs for Clearguard Pressure Filters Model:9W Bulb (Gen 1&2) Built into the riser isReplacement 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