I received my order of Shurflo replacement o-rings very quickly - sooner than expected. Unfortunately, I really only needed 1 or 2 o-rings, but they are only offered in a pack of 10. I'll never use 10 o-rings, so it was wasteful spending. I shopped other companies, and could not find packs of 1 or 2, and Boatplicity was the least expensive for what is available on-line.
