They are available in male or female ends for 3/8" tubing. just slide tubing into tube nut, install the ferrule, and attach tube end. Compression style fitting. Easily connect tubing to AN fittings;.
Lot 8 mix 2- 45 Degree AN6/ 2-90 Degree/2-0 degree /2-6AN Male to 8AN Female Str
Set of 2 6AN Male Flare to 6AN Female Swivel with 1/8" NPT Female Sensor Port
3-Way Y-Block Fitting Adapter AN6 6AN Male to 2X AN6 6AN Male BLACK
-6AN Male to -6AN Male Thread Straight Aluminum Anodized Fitting Adapter Red
Universal 6AN Male to M14 x 1.5mm Male Metric Thread Fitting Adapter Pack (2)