Replacement UV Globes

UV globes need to be replaced annually within your UV pond filter, because after this amount of time the globe will blow or the wavelengths that the globe emits will not be as effective at killing algal cells in your pond water. We are the importer of generic globes and that's why we are the cheapest! When you change the globe, make sure you do not get any moisture on the globe and that your O-ring seals are in good condition.