I've got a couple nice stainless injectors-one from Cabela's, not sure of the other, but I find the cheap syringe type Cajun Injector that comes with the Cajun marinade to work just as well. Plus it's not a travesty if you misplace or break one. My 2c.
UDS'-55&16, Akorn, Bar-B-Q Kettle, Drum Grill, miniWSM, cobweb-covered gasser. I'm JD.