Mastercool 91498 Universal R410A Valve Core Remover/Installer Kit – High-Pressure HVAC Tool with Safety Locking Nut – Includes 1/4" Flare & 5/16” Flare Fittings

Professional Valve Core Service for High-Pressure SystemsThe Mastercool 91498 Universal Valve Core Remover/Installer Kit is specifically designed for high-pressure refrigerant systems like R410A. Featuring a patented safety locking nut, this tool allows technicians to safely access and replace valve cores without evacuating the system—saving time and minimizing refrigerant loss.Versatile and Field-TestedBuilt for professional use, the 91498 includes both 1/4" flare and 5/16" Flare fittings to ensure compatibility with a wide range of systems. The heavy-duty brass and steel construction provides durability and precision, even under extreme working conditions.What's Included:Valve core remover/installer tool with patented safety locking nut1/4" flare fitting5/16" flare fittingBlow-molded carrying case

• ✔️ Safely Replace Valve Cores on High-Pressure Systems – Designed specifically for R410A and other high-pressure refrigerants.
• ✔️ Unique Safety Locking Nut – Patented design lets technicians freely access valve cores while safely managing system pressure.
• ✔️ Includes Multiple Fittings for Broad Compatibility – Comes with both 1/4" flare and 5/16” Flare connections for use across various HVAC systems.
• ✔️ Prevents Refrigerant Loss – Allows for valve core servicing while the system is charged, minimizing waste and speeding up repairs.
• ✔️ Built for Demanding Conditions – Rugged brass, steel, and aluminum construction ensures long-term reliability in high-pressure environments.
• ✔️ Packaged in a Blow-Molded Carrying Case – Keeps all components organized, secure, and protected between jobs.
• ✔️ Backed by Mastercool’s Proven Design – Based on Mastercool’s original patented under-pressure core service technology.