Metal-Fab, Inc. has announced the new G Series™ Grease Duct Systems. Incorporating five different configurations of duct, G Series offers the widest selection available for commercial cooking operations, all UL Listed and all from one supplier. The product is factory-inspected by Metal-Fab quality assurance personnel, and reviewed by Underwriters Laboratories for conformance to design and test criteria. All flues are constructed of high-quality 304 or 316 stainless steel for superior, long-lasting surface and easy maintenance. Metal-Fab's unique liquid-tight connection system assures that no leaks contaminate insulation, compromise fire integrity or cause fire hazards. Metal-Fab, Inc.