- Zero Refrigerant Loss Technology: Replace leaking valve cores instantly without releasing refrigerants (R22/R32/R410A/R134a). Built-in bypass port and airtight seal design ensure leak-proof repairs, saving costly refrigerant recharging. - Dual-Size Universal Fit: Fits both 1/4" and 5/16" SAE ports. Perfect for HVAC split systems, mini-split units, automotive AC, and refrigeration lines. - Pro-Grade Durability: CNC-machined aviation aluminum body with ball-valve handle for smooth operation under high pressure. Schrader core grabber with magnetic tip securely retrieves stuck valves, while the metal cap resists stripping — 3X longer lifespan than plastic tools. - 5-Minute Repair, No Expertise Needed: Reverse-thread design prevents accidental disassembly. Ergonomic knurled grip works with gloves. Ideal for DIYers and HVAC technicians tackling emergency leaks in residential/commercial systems. - Use scenarios: - Emergency refrigerant-leak repair on a residential HVAC system, replacing the valve core in minutes without reclaiming refrigerant. - Field maintenance on a mini-split or automotive AC line, enabling quick core replacement. - Servicing refrigeration lines in commercial equipment, retrieving a stuck Schrader core without full disassembly.