Areo's Passive Grease Interceptors are designed to intercept and remove large quantities of fats, oils, and grease, discharged from food service facilities and large commercial/institutional kitchens, which might interfere with the proper drainage and treatment of municipal wastewater. Areo Passive Grease Interceptors are highly efficient. Designed to accept gravity flow, Areo Grease Interceptor Tanks, with their advanced Switchback Baffling System™, retain wastewater long enough to allow liquified grease to cool down, separate, and congeal. Areo Passive Grease Interceptors keep large amounts of pipe-clogging grease from entering the sanitary sewer system.