The BRIGGS & STRATTON 820311 Engine Fuel Filter helps keep the fuel supply clean by trapping dirt, debris, and other contaminants before they reach the engine. This replacement filter installs within the fuel line and allows fuel to pass through while filtering unwanted particles from the fuel system. Clean fuel flow supports proper engine operation, helps protect fuel system componen... https://www.wholetoolbox.com/briggs-stratton-820311-engine-fuel-filter/820311.html