The Professional 3 2080 is the first of a new external filter generation with even more technical benefits than the Professional II series. Summary of Features: A new priming principle A large pre-filter for easy intermediate cleaning and extra long service life Triple hose connection (2 inlet side and 1 pressure side) Recessed handles and transport wheelso Maintenance and flow rate indicator Adjustable pump output Includes all sponge filter media (cermaic media excluded)