Aquascape® UltraKlear® UV Clarifier/Sterilizer Sinking It comes with a brass

It comes with a brass ball valves which gives fine control of fountain volume

and switch to Pond Digger Cold Temperature Formula when water temperatures hang steady in the the low 60° range

a water temperature of at least 48°F

The ThermaKoi 1

as it requires no separate pump and no installation

Aquascape® UltraKlear® UV Clarifier/Sterilizer Sinking It comes with a brassIn a pond, algae blooms or "green water" can be a difficult issue to address safely and effectively. Not anymore! The Aquascape UltraKlear UV Clarifier Sterilizer uses a technologically advanced T5 high output UV bulb, making it more efficient than traditional UV clarifiers. The Aquascape UltraKlear UV Clarifier Sterilizer features a swirl sleeve that helps direct the water around the UV bulb, creating more contact time and increasing UV efficiency up