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List Price: $101.25
Our Price: $55.04
Your Save: $ 46.21 ( 46% )
Recent Price Activity
Availability: Usually ships in 2 to 3 days
 *Eligible orders over $25 ship free
Manufacturer: Robinair
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Average Customer Rating:  
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Binding: Misc.
Brand: Robinair
EAN: 0637335000025
Feature: Shop air driven, no oil or moving parts to replace
Label: Robinair
Manufacturer: Robinair
Model: 34970
Publisher: Robinair
Studio: Robinair
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Features
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Shop air driven, no oil or moving parts to replace
Rugged Lexan case is both oil and scratch resistant and comes with a convenient handle
Vacuum Rating: 29.7 in./Hg
Intake Fitting: 1/4" FPT and 1/2"
Acme Dimensions: 4-1/2"H x 4"W x 7-1/2"D
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Editorial Reviews:
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A/C Air Vac For R-12 & R-134a Economical unit uses shop air to pull the system into vacuum and includes inlet fittings with 1/4" and 1/2" acme for R-12, R-22 and R-134a automotive air conditioning service. Easy to use connect back fitting to compressed air source and front fitting to center hose of a standard manifold set attached to an A/C system. Rugged Lexan® case is both oil- and scratch-resistant and comes with a convenient handle. Compressed air driven no oil or moving parts to replace. Specifications: Drive: Compressed Air Free Air Displacement: 1 CFM Number of Stages: Venturi Input Pressure: 75 psi Vacuum Rating: 29.7 in./Hg Intake Fitting: 1/4" FPT and 1/2" Acme Dimensions: 4-1/2" H x 4" W x 7-1/2" D Weight: 2 lbs./ 1kg
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Spotlight customer reviews:
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Customer Rating: 
Summary: Surprising performance Not as good as high vac pump but...
Comment: This low cost solution to vacuuming an a/c system is a viable option. I was somewhat skeptical being an old a/c mechanic and having always used a robinair high vacuum pump. In a pinch, I needed a low cost way to vacuum and auto a/c system after replacing some o rings so I purchased one of these and was amazed first that it even worked and second that it produced adaquate results to allow me to recharge free of enough non-condensables to get by. The very reason for vacuuming is to remove moisture, air and any substances that are non-condensible within the a/c system. If not removed these non-condensables reduce the performance of any a/c system or even stop it from working.
Now the performance wasn't up to what I could get with my trusty Robinair, but was satisfactory. The water column it pulled was about 23 inches on a my gauges. (My robinair will pull down close to 28 inches). (I think a perfect vacuum is between 28 and 29 inches of water column on a manometer).
I would recommend this if saving money is crucial and you need it for a small job where you don't plan to use it every day. If you leave it running for a half hour or so it should boil off all the water and most of all the other non-condensables inside the system.
Hope this helps.
Customer Rating:
Summary: Works great but needs tons of air
Comment: I bought this tool to evacuate the a/c system in my car after replacing the a/c compressor. It worked fabulously. I attached a vacuum gauge and it was pegged to full vacuum for the entire time I had it on. One thing to note is that this tool requires a decent sized air compressor. I have a pretty good sized 6HP 30gal 150psi craftsman compressor and it had just enough power to keep it at around the required 90psi.
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