Mods - please confirm that it is acceptable to post source info for "accessory products" such as bacteriostatic water and I'll post a source that offers 2-3 day domestic shipping and great customer service.
I just ordered both bacteriostatic and sterile water in 6 x 20ml vials which were shipped via USPS Priority Mail and arrived in 2 days. Priority Mail is 2-3 day delivery in the continental US.
They carry other related supplies such as needles, syringes, etc. but do NOT carry vials. I will take a quick look to see if I can help you there.