Car AC Service Kit 40pcs/102pcs Valve Cores + 270 O-Rings + Tools R12/R134a Compatible Nitrile Rubber Seals for Repair, Maintenance

40pcs/102pcs high-quality valve cores (Schrader type). 270pcs nitrile rubber O-rings (-40°C~120°C). Professional removal/installation tool set. Dual Compatibility: Works with both R12 and R134a systems. NBR seals resist PAG/ester oils. UV-resistant components. Professional Tool Included: Heavy-duty valve core removal tool. Ergonomic non-slip grip. Kit Contents Breakdown: 40pcs/102pcs valve cores (universal fit), 270 NBR O-rings (18 sizes), valve core removal tool, storage case with compartments. Pro Tip: Always replace valve cores AND O-rings when servicing AC systems - this kit provides everything needed!