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$44.99 + $8.97 shipping
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R134a with SubZero Synthetic A/C Booster, Reusable Recharge Hose and Inline Gauge, 19 oz. (345)

4.1 out of 5 stars 45 customer reviews

Price: $44.99 + $8.97 shipping
Only 10 left in stock.
Ships from and sold by Midway Auto Supply.


Product Information

Technical Details

Brand EF Products
Item Weight 2 pounds
California residents Click here for Proposition 65 warning
Manufacturer Part Number 345

Additional Information

ASIN B0002KKLJS
Customer Reviews
4.1 out of 5 stars 45 customer reviews

4.1 out of 5 stars
Best Sellers Rank #323,983 in Automotive (See top 100)
#898 in Automotive > Interior Accessories > Gauges > Gauge Sets
#13,614 in Automotive > Replacement Parts > Lighting & Electrical > Electrical
Shipping Weight 3 pounds (View shipping rates and policies)
Date First Available July 7, 2004

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Product Description

SubZero Synthetic is a cutting edge lubricant for automotive air conditioners. The recommended 2 oz. application can improve the cooling performanece up to 18%. It is compatible with PAG & POE lubricants. Contains 17 oz. of R134a and 2 oz. SubZero Synthetic with reusable recharge hose with in-line gauge.

Customer Reviews

Top Customer Reviews

Bought this to recharge a 2003 corolla that was blowing warm air. The gauge read a low 10psi and i charged it back up to 50 (88 F degrees outside that day) in 10 minutes. This was my first time charging an A/C system and it was really easy, just follow the included instructions. I recommend cleaning the cap and low pressure port with a clean rag before starting to reduce the change of dirt getting into your system.
1 Comment 36 of 38 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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It worked great for me. Simple to use, clear instructions, and my car's AC is frosty cold. This was the first time I've ever tried to recharge a car's AC, so I was very pleased with the results. I would buy it again.
2 Comments 30 of 32 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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I used this product to recharge my 97 Honda which of course was blowing hot air out of the vents. I simply read the instructions and in 10 minutes I was all set and the Honda blowing nice chilly air in the cabin. What attracted me to this product was the reusable hose and gauge which works quite well. I would recommend to anyone wanting to save themselves some $$$ and a trip to a shop. Remember to follow the step by step instructions to a T.
2 Comments 15 of 15 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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So my truck was blowing hot air and I decided to give this stuff a shot. After a relatively cheap investment, I now have cold air back! Honestly I thought that this was just a gimmick and that I'd be out my $40, but it actually worked. I don't know that much about cars, but this stuff is simple...just follow the instructions. The Autozone guy was very helpful and showed me where the "low side" is. I set the dial to the ambient temperature (very important step) and turned the valve. A few minutes later the meter showed that the pressure was where it needed to be and presto - cold air! I probably used about 80% of the can, but who cares when I just saved a couple hundred by skipping the mechanic. As long as you know where your low side is and know how to turn a valve, you should be in great shape.
1 Comment 19 of 21 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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First off i read Jin's review and gotta say...you have no clue how to use any tech whatsoever! check it out:

1- the can has instructions! read'em
2- the gauge has to be de-pressurized (hence the screwdriver or some item that create a release for the internal pin (looks like a tire pin, you deflate tires the same way. bam!
3-in short if you never have done it use gloves because tension and tight spaces causes stress that gloves prevent. A/C has to be running! (turn on (AC) not just the fan! make sure your AC light illuminates to tell you that the "chill" is going through the car the compressor pulls the freon out from the can as it runs. if not...all you do is cause gas to build in the umbilical hose.
4- to tweek the PSI you have to turn the nozzle and adjust on the fly (detailed instructions! i'm military and i know how to follow them, people who served know how to follow instructions as police and medics and the like. whats with people who can't follow WRITTEN instructions! you're killin me noobtastic 1 star rater! you made me laugh tonight.
1 Comment 51 of 64 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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I used this setup to evaluate how charged my system was. Then I let out some pressure from the system as I would have been over pressurizing the car not doing so...

1. It is important to know that the gauge has to be dialed to the approximate outside temperature at the time you add coolant... It's a cheap and easy dial, set it and use it for reference.

2. Disconnect the hose from the can, attach the hose to the car and validate the hose will not come off. It's the air tool style connector, tug on it, if it does not come off your probably ok.

3. Start the car and turn on AC. Once the car is engaging the AC pump hook up your can to the hose.

4. Close the valve all the way, this punctures the cans seal.

5. Slowly open the valve, opening and closing will let your AC pump suck in the coolant a bit at a time...

After 5 mins your can is empty... turn car off and disconnect hoses... You may need an additional can.... but I did not...

Unless you got other problems with your cooling, you can now enjoy your work, and the money you saved doing it yourself.

Good luck all... Rory Siwik
3 Comments 21 of 26 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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My 2001 Honda cr-v A/C was never recharged before because it always worked great. However, the other day when it reached 112000 miles, the A/C was warm at start up and took twenty min to blow cold air. I bought this product, watched the 4 or 5 videos on you-tube to see how its done. I never did any A/C work on any car. You must read all directions on can. The gauge read very low PSI so I was started to add the product. 90% of the can was used to get it in range of normal.
I drove for 3 miles or so and the a/c was very cold. Yes only a few hours have passed since using the product, but I will try to update this review when I have driven it for a long time. I must comment on the reviewer that said the product does not come out of the can, you must turn the valve to puncture the can.
2 Comments 4 of 4 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Verified Purchase
The item worked well and was easy to use. Would recommend this item to others who needed such an item.
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