cAMP - 20-5-2012 at 16:25
Just wanted to let everyone know that there are a few chemglass vacuum pumps with ptfe diaphragms available on ebay. Just search "chemglass knf"
I ordered one. They are used and at a significant discount.
I hope this might be useful to someone.
mr.crow - 21-5-2012 at 20:13
These pumps are really good. However, mine is kind of warn out and only pulls 23 inHg