Bought for use in the car. The screw connections on both quick-release couplings were only hand-tight, and even after tightening, the high-pressure quick-release coupling leaked heavily. I even tried using plumbing tape on the fittings but to no avail. I contacted the manufacturer for a replacement and received no response. Also, the can tap included in the kit did not match the gauge set as it is 1/2" ACME female and the yellow service line is 1/4" male so had to be purchased separately. Gauges don't seem to be accurate on vacuum pulling, but I can't say for sure due to leaks. The instructions were terrible for each device in the kit. I don't think an A/C analyzer will ever detect a small leak. He had a leak in my high pressure schrader valve and vaporizer. The bottom line is this kit contains all the cheap components that won't get the job done and will just result in more work, wasted refrigerant and zero customer service. Do yourself a favor and buy decent quality individual components.
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