Ritchie Engineering Co.'s new Yellow Jacket No. 77950 oil recharge pump replaces oil in auto A/C systems or into compressors after oil removal. It works on all system pressures to 300 psi, 1.5 ounces per stroke. The system includes bottle with calibrations, hose and low-side R-134a coupler, and may be used on R-12 and R-134a systems.
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