They are a gardening hose attachment from Australia. I had someone from Australia pick them up and ship them. Last I checked, the correct ones couldn't be ordered online. They are described as: "25mm BSP, Nut and 19mm Tail"
Ohhh okay, reading back I think I understand where my confusion came from. Earlier you said you have the legit stuff from down under, and I thought you were talking about the tubes, not the vest attachments. Derp!