TetraPond® GreenFree® UV Clarifiers Herbicide It is an excellent refill

It is an excellent refill for all filter cartridges and can be used for all freshwater and saltwater aquariums

Attach to your pump

dirty pumps within minutes

simple-to-use LEDs create a beautiful nighttime focal point to your outdoor paradise

TetraPond® GreenFree® UV Clarifiers Herbicide It is an excellent refillTetraPond GreenFree UV Clarifiers use ultraviolet light to destroy suspended algae, causing dead algae clump together in particles large enough to be removed by filtration, leaving the pond clearer. Works against green water, string algae and other kinds of pond algae. Removes heavy algae blooms within five days and keeps pond algae free Easy to conceal, durable, and install in minutes 15' power cord 3 year warranty UL Listed SKU UPC Model UV Size