Pump sits in bottom chamber. Water enters through the top mechanical filter pad then passes through the biological filter media. Maintenance is as easy as simply rinsing of the top mechanical pre-filter once a week and rinsing off the inner biological filter once a month......Contains Total Surface Area of 140 square feet for nitrifying bacteria to colonize.....Buy Direct!

Max Pump size 950 GPH
( Pump Not Included )
Installation Instructions