ATB Filters for media or biopellets, the Deluxe series have unique bottom slots and tangential jetting of the noozle that feeds water. This ensures a perfect blending of the pellets and significantly increases their efficiency. The lid and filter screens are easy to remove and facilitate cleaning and maintenance. ATB filters are designed to have a bottom intake and outlet. Thanks to this, they have very compact dimensions while maintaining perfect functionality. They are suitable for both for connection to the main displacement pump bypass as well as for connecting the Airstar pump.