SUITABLE FOR 1/4″ & 5/16″ – Inline Gas Fuel Filter for 6mm & 8mm 1/4″ & 5/16″ internal diameter pipe. These gas tapper filters are barbed, so there is no slippage from the fuel line. Easy to install and have no problems with leaking issues. EASY TO SEE INSIDE – With this type of filter you can see if the filter is dirty and the debris that it has kept out of your gas line & carb. Installs easily and quickly. Do yourself a favor and swap out your old filter for one of these and replace it every couple of years. CLEAN THE FUEL – If you don’t use them already, these inexpensive filters are invaluable in keeping the debris that will get into your small engine fuel tank from getting to the carb. These will stop that crud from getting into the carb. EXCELLENT FILTRATION – It cleans the fuel on the discharge side of the fuel pump before it enters the carburetor. It is clear, hi-temperature plastic and easy to see when it needs to be replaced. keeps fuel clean before entering engin