Alright I hiked downstairs and into the garage for ya buddy the first pic is a guaranteed oxygen absorbing cap, while the second is a regular. I don't know if it shows in the pic, but the seal on the oxygen absorbing cap is very clear rubber, and whatever the 17 means, while the regular is sort of cloudy. No really noticeable differences though.
Bottlebomber how do you know you didnt get ripped off too? Hahaha j/k The pics are awesome! Thanks. I saw another thread where someone mentioned that the caps have a gritty appearance. Im guessing there are just different types then?