Aeroflow's Universal roll over valve can be screwed directly into an aftermarket fuel cell that has a -10AN female thread. The top of the valve has a -6 ORB female thread and a stainless steel ball. It can be used with the AF996-10D, AF996-10S and AF996-10SS weld on or an AF924-10 Bulk Head nut with a choice of any -06 ORB to suit any plumbing solution. When the fitting is screwed into the top of the roll over valve it locks the ball.