MASTERCOOL 58490 Mastercool Universal A/C Valve Core Remover/Installer, Black

✔️ SERVICE VALVE CORES UNDER PRESSURE - Remove and replace valve cores without discharging the system using built-in shutoff and ball valve control. ✔️ UNIVERSAL R134a COVERAGE - Works with standard valve cores (0.210-36), JRA (M6 x 0.75), and Eaton-style cores (8mm & 10mm threads). ✔️ COMPLETE ADAPTER SET INCLUDED - Comes with high and low side R134a connectors (13mm and 16mm), plus multiple shafts and adapters for maximum coverage. ✔️ IDEAL FOR PROFESSIONAL TECHNICIANS - Designed for full system compatibility across most R134a passenger vehicle platforms. ✔️ DURABLE, FIELD-READY CONSTRUCTION - Features brass body, stainless steel ball valve, and hardened steel shafts. ✔️ INCLUDES MOLDED CARRYING CASE - Keeps all adapters, shafts, and connectors organized and protected. ✔️ ORIGINAL MASTERCOOL DESIGN - Built on patented technology originally developed by Mastercool, trusted by professionals for decades. ✔️ TRUSTED QUALITY AND U.S. SUPPORT - Mastercool delivers over 40 years of A/C service innovation with responsive, U.S.-based customer support and technician-first design.