Gravity Grease Interceptors are specifically designed to serve Food Service Establishments (FSE’s) in the Pre-Treatment of kitchen waste prior to the waste stream entering the public sanitary sewer system. Interceptors store the Fats, Oil and Grease (FOG) generated by the operations of a kitchen. The sizing of Gravity Grease Interceptors is generally governed by either the Uniform Plumbing Code (UPC) and or the Authority Having Jurisdiction (AHJ).