Lifegard Aquatics Heater Modules Size:Triple Simply add the balls into

Simply add the balls into the biological chamber

leaf debris and excess nutrients that cause poor water quality

If there is a UV Sterilizer in the pond

More resistant to ozone than other airstones

Lifegard Aquatics Heater Modules Size:Triple Simply add the balls intoShips from manufacturer, typically in 5 7 business days Lifegard Aquatics Heater Modules provide stable temperature control by reciruclating aquarium water continuously around the heater element. Accepts 1" or 3 4" diameter aquarium heater (not included). Compression coupling allows easy installation and removal of heater Removes unsightly and fragile heaters from aquarium Overflow pipe automatically vents air from chamber Clear cap to view "on"