Features: Technology increases turbulence in the brew funnel. Brews up to 5.9 gallons (22.3 liters) of perfect coffee per hour. Brew into 1.9L thermal carafe using the slide-out booster tray. Adjustable legs to accommodate up to 3.0L* lever action and 2.5L push button BUNN airpots (refer to usage table). Airpots, carafes and thermal servers keep coffee hot and are easily transported. Ensures coffee brew quality with cold brew lock out capability.