It was a starter tank, so I'm pretty sure it only comes in the 3 gallon. And the filter is actually too strong for bettas, its a Tetra Whisper (i think?) so it's pretty quiet, but you can still hear it. I could still easily sleep with it right next to my head though ahaha (my fishies are RIGHT next to my bed).
It was just around 25 dollars from walmart for the whole kit if I remember correctly. (tank w/ top and mini stand thing, fake plant, filter, light)
And there is no way for the fish to jump out of it unless you forget to put the lid on. :]