Mastercool81490 R134a Valve Core Remover & Installer – Service Valve Cores Under Pressure – Compact Tool for Automotive A/C Systems with Internal Shutoff

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🔩 Upgrade your A/C game — service smarter, not harder!

The Mastercool 81490 R134a Valve Core Remover & Installer is a compact, durable tool designed for professional automotive A/C technicians. It enables valve core replacement under full system pressure, fits most standard 13mm and 16mm R134a ports, and features a rugged steel and brass construction with ergonomic handling. Trusted by pros for over 45 years, it streamlines A/C servicing with unmatched efficiency.