• 13-watt ultraviolet sterilizer - kills free floating algae, bacteria and parasite
• 3 fountain water feature attachments
• Adjustment valve for regulating flow to fountain head and/or auxiliary water feature
• Includes a large coarse filter foam that water must pass through first and also three bio filter media baskets
• The unit is designed to run submerged so you do not have to worry about disguising it as you would with external filtration systems