I have a question about the O-Rings for the intake tubes on a 220 gpu. I just replaced the O-Rings and the new ones that I bought seem to be a little cheezy compared to the ones that were replaced. The old ones were dry rot and needed to be replaced but they were wider and had a nice bevoled end that seemed like it seal better.With the new ones installed the tube seems to be kinda loose. Are there different kinds that you can buy or are they all the same. Can anyone recommened where to purchase them. Thanks for the help this forum and its archives have helped me immensly.