Earl's Straight Fuel Injection Adapter -6 AN Male to 5/16 in SAE Female Quick Disconnect - Black 42032BK The center or shim layer

The center or shim layer is uncoated stainless steel

Facilitates optimum sealing of gasket surfaces

Increased energy absorption

with 6 trap doors

Earl's Straight Fuel Injection Adapter -6 AN Male to 5/16 in SAE Female Quick Disconnect - Black 42032BK The center or shim layerFuel Hose Fitting Metal internal and external retainer provides a reliable & reusable fuel connection that cannot snap loose or melt like some plastic retainers O ring material developed specifically for the same application on factory vehicles to tolerate today's fuel additives and E85 Tether chain keeps secondary retainer clip attached to the adapter so it is always handy (installed retainer can also be safety wired to adapter for additional safety)