Mastercool 91290 Universal Valve Core Remover – Double-Ended Tool for R12 Standard and GM Large Bore Valve Cores

Reliable Tool for R12 Valve Core ServiceThe Mastercool 91290 Universal Valve Core Remover is a compact service tool for R12 and R134a systems, ideal for use during system evacuation or repair. With a double-ended design, this tool includes hardened steel shafts for Standard and GM Large Bore valve cores—making it a great choice for older vehicles and GM applications.Designed for non-pressurized systems, the 91290 delivers durability, simplicity, and excellent value in a technician-friendly format.What's Included:Dual-ended valve core remover/installer toolHardened steel shafts for Standard and GM Large Bore valve cores

• ✔️ Designed for GM and R12 Valve Cores – Services two of the most common core types used in older systems.
• ✔️ Double-Ended Design – Easily switch between shaft sizes for fast service.
• ✔️ Non-Pressurized Use – Ideal for system repairs, retrofits, or recovery applications.
• ✔️ Built to Last – Rugged steel shafts for reliability in everyday shop use.
• ✔️ Compact and Technician-Friendly – Lightweight tool that fits easily in your hand or pocket.