Built-in gasketsUnmatched fuel cleansing performanceQuick, easy filter replacementHighly durable and reliableReduces mis-installation of gasketsWix Cartridge Metal Canister Fuel Filters are designed to protect fuel system components and absorbs gasoline vapor from contaminants in the fuel. They have a built-in gasket which prevents leakage of the fuel under compression loads. These filters withstand minimum internal differential pressure of 75psi.