Mastercool 58531 Valve Core Remover/Installer Kit – For R134a Standard & JRA Valve Cores – Service Under Pressure Without Releasing Refrigerant – Includes Adapters & Carrying Case

Mastercool 58531 Valve Core Remover/Installer Kit – For R134a Standard & JRA Valve Cores – Service Under Pressure Without Releasing Refrigerant – Includes Adapters & Carrying Case

• ✔️ Replace Valve Cores Under Pressure – Quickly remove and install valve cores in R134a systems without discharging refrigerant, saving time and materials.
• ✔️ Designed for Standard & JRA R134a Cores – Includes two dedicated core shafts to handle the most common R134a automotive valve core types.
• ✔️ Ideal for Mid-Level Shops & Mobile Techs – Covers a wide range of vehicles using standard and JRA-style cores with less bulk than full universal kits.
• ✔️ Heavy-Duty Performance in a Compact Package – Durable brass valve body, stainless steel internals, and precision-machined shafts ensure long life in shop conditions.
• ✔️ Integrated Ball Valve for Fast Isolation – Allows the technician to safely isolate system pressure during core removal or installation.
• ✔️ Protective Carrying Case Included – Rugged blow-molded case keeps all parts organized, clean, and protected on the job.
• ✔️ Backed by Mastercool’s Proven Innovation – Built on Mastercool’s original patented design for safe, efficient valve core servicing under pressure.
• ✔️ Supported by Mastercool’s U.S.-Based Team – Trusted worldwide for professional-grade A/C tools, parts, and support.