

can anyone help with these gas connections?
i know there are a few clever engineers out there in the diving world!
the one with the valve is an inlet and the red handle should open/close tank pressure going in,
the other is ... well i have no idea!
what i need is to connect the inlet to a BOC F size cylinder which from looking at the BOC website the bullnose regulators have 5/8" outlets and this seems to be a 1/4" inlet,BOC seem to have an adaptor although without callinmg them i cant be 100% sure i have the right item but the hose between them seems to be female both ends but it would need to be male both ends and ideally id like as few connections as possible?
greens to anyone who can solve my little puzzle
any ideas ?