get a used one cause you sound serious about pumping
you will quickly out grow the tubes
if you are bottoming out right now, either your tube is not 8" or you got a fat pad and using high vac pressure. (just saying cause of the pic next to the coke can)
in any case dont get the biggest tube you can find right away or you'll get lumpy gains.
lots of used tubes out there, buy them, boil and clorox if you are a germophobe
resell them when you out grow em.
Penis Enlargement
penis enlargement, penis pumps, vacuum pumps, penis enhancement, erectile dysfunction
these two sites will get you started, check out the forums and see about buying or trading.
good quality pumps with the quick disconnect are the best and universal. they have a standardized nipple so you just need one good pump and it will work with any tube. dont go overboard with the pumping (too much vac pressure, it will cause
blisters)

I wish everyone here pumped, bigger and more pics

if money is not a concern go with mr.s.fetish, good quality and service