COUPLER FITTING 06AN Male TO 06AN Male W/ LOCK NUT BLACK ANODIZED ALUMINUM
$30.99
It has 06 an (9/16-18) male that seals on a o-ring on one end and 06 An male that also seals on a o ring on the other end. Once you tighten the fixed side you can clock the other side and tighten lock nut.