Work faster and cleaner with this HVAC valve core remover tool. Featuring a 1/4" & 5/16" dual head, it fits most AC service ports and supports R410A, R134a, R1234yf, R32 refrigerant systems. The full-flow, 20-micron vacuum rating allows quick evacuation and charging without removing refrigerant. Designed with a leak-proof double O-ring ball valve, it prevents loss and contamination. The adjustable tip ensures a secure grip on different valve cores, making removal and installation easy. Made of heavy-duty brass, this tool is built for long-lasting performance in HVAC and refrigeration service.