The Mastercool 91498 is a Valve Core Remover & Installer for R410a
Product Features:
- Newly designed with patented locking mechanism, the 91498 is the only valve core remover kit that has a safety nut allowing the technician to freely access the valve core without fighting high pressures
- Packaged in a blow molded carrying case, this kit also offers ½”-20 UNF and ¼” flare fittings for all refrigerant applications

