Brews 3.8 to 8.9 gallons of perfect coffee per hour. .5 gallon and 1 gallon batches brewed into 1.5 GPR portable server server included. Gourmet funnel allows use of heavier throw weights of coffee. Hot water faucet and .5 gallon pourover backup on all models. Reduce accidents with safety features like the SplashGard funnel that decreases hot splashes. All stainless steel construction.