Hi guys,
I'm looking to buy a new vacuum pump as the one I've got just now is approx 40 years old (3 generations old). I'm not really too sure what to look for. I take it the higher the CFM the better and obviously the higher HP of the motor is best but what about microns? Can anyone recommend a pump or at least what I should be looking for?

I've seen a few on eBay and some of them are from Hong Kong and much cheaper. They have Javec, VPUMP and the Hong Kong ones don't have a brand.

The pump I've got and always used was connected through my gauges to the 1/4 flare but most of the ones I've seen haven't got that connection so what do I connect them with?

Thanks for your help guys.