[harrellbenjamin]

I bought one of these injectors on EBAY about a year ago.It is an aluminum injector with two o-rings that attach's with suction cups.The o-ring that contacts the glass just rides in a groove at the bottom of the injector and will fall off every time you remove it.Although it has good pressure and seems to pull a good vacume it just was not good for me to use on a day to day basis.I got tired of chasing the o-rings and the adjustment/position of contact and glass pressure were lacking.Would be good for the ocasional hobby -tech but more of a hassel for anyone doing volume/quality work. Mine found its way back on EBAY.Not a bad thing for the price but more for a hobby tech ..... JMHO