Tetra Pond Green Free UV Clarifier replacement UV bulbs. Lamps will work with both new and old style Green Free Clarifiers and Bio Active Pressure Filters with Green Free UV Clarifiers built in! TetraPond Green Free UV Bulbs help keep your pond free from algae.
Compatibility: Simply match the wattage of your UV Clarifier with the wattage of the bulb below!
NOTE: This "New Style" UV Bulb fits Tetra UV Clarifiers manufactured 2011 or later.