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Alkoxide
Harmless
Posts: 14
Registered: 13-5-2015
Member Is Offline
Mood: Refluxing
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You can definitely find some good deals on ebay. I bought a KNF 2 stage vacuum pump with PTFE heads and explosion rated motor, 29.7" Hg vacuum, for
$175 with shipping (it weighed ~45 lbs). I originally bought an aspirator but my sink could not connect to it due to non-standard threads on the
faucet. I love my vacuum pump, never had a problem with it and its probably older than I am! Vacuum pumps also have the bonus of an exhaust port that
can be connected to tubing to remove toxic/corrosive vapors from the lab area. Aspirators carry vapors right through into the sink.
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rsneha
Harmless
Posts: 2
Registered: 22-11-2018
Member Is Offline
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Also try this one : https://unitconverter.net/pressure-conversion
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