Radium 3/8In Sae Female To 6An Male Low Profile

Radium Engineering 3/8In Sae Female To 6An Male low profile hose connector
CNC machined Aluminum; Black and Green anodized; Stainless steel hardware; Low-profile design

These adapter fittings are available in a variety of configurations. They push-on and secure to most modern USA, European, Japanese, etc. fuel injection systems and are used to convert an OEM SAE Quick Connect connection

To determine the required size, simply measure the outside diameter of the male fitting as shown below.
0.3125 = 5/16"
0.375 = 3/8"
0.50 = 1/2"