Low Cost Vacuum Pump?

[CraigK]

I have a couple of AC systems to retrofit and refill, and think it might be time to spring for a pump. Can anyone identify a currently available, LOW COST mechanical vacuum pump (not the venturi/compressed air type) that will suffice for very occasional auto AC use? Cheapest I've seen is about $90 + shipping. Thanks.

CraigK

 

[killj0y]

Harbor freight carries some cheaper then 90 and with a 20% off coupon I'm sure it's affordable, I've been meaning to get one.