Review on Four Seasons 14718 Compressor Conditioning by Douglas Hall
R12-R134a conversion
Had old R12 screw connections (needs to be opened manually for service). This fits my SD709 (91 Jeep XJ) exactly. Note to all other installers: Old and new air conditioners use AN fittings, typically -2 to -8. Measure the OD of the hose and check the corresponding dimensions of the AN fittings. For example, my expansion valve has -8 and -4 in front and two -6 in back. It's versatile and really helps to find the right valve. 4S lists all sizes in AN.
- Nice to use
- Too stupid
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