A method of connecting a first fitting to a second fitting to provide a fluid coupling between the first fitting and the second fitting includes providing a first fitting having an exterior surface; providing a second fitting having an interior surface and an annular groove provided on the interior surface; positioning the first fitting at least partially within the second fitting; and deforming the first fitting in a generally annular direction to form an annular ridge extending at least partially into the annular groove to couple the first fitting to the second fitting.
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