I think its time to part with these beauties as I'm mostly sticking with Apeks these days. One of the three is the metal orifice version, and two are plastic. I don't know which model the extra aspirator body is, but it also has a metal orifice. Asking $200 US plus shipping, payment by paypal. May consider trades for Apeks, Scubapro G250 or Hog regs.