The Supply Tube is an OEM part for Frigidaire gas ranges. It is a flexible metal tube that safely transports natural gas fuel from the household supply line to each burner assembly on the cooktop.  Symptoms of a bad supply tube include:  Gas leaks at connections or along tube seams Inconsistent or weak burner flame levels Burners that light unevenly or not at all Causes of failure can be cracking/corrosion of older tubing from regular heating/cooling cycles, damage from stove movement, or accidental kinks that reduce gas flow.  Replace with this genuine Frigidaire supply tube to ensure a reliable source of fuel for each burner. It is also compatible with Electrolux, Gibson, Kelvinator, and Kenmore gas ranges, providing years of dependable cooking performance.5304507888 (AP6039633) replaces 316547200, 4456581, PS11773308.