Comprehensive Valve Maintenance Made of solid brass with a quarter-turn ball valve. Our environmentally friendly tool allows seamless core replacement without gas loss or downtime. Upgrade Eco-Friendly Cores Golden yellow base with high fluorine and heat resistance. Longer service life than ordinary cores. No-Downtime Installation The core grabber tool makes it easy to control the inner core. No need to stop the machine or release refrigerant. Wide Compatibility Dual size (SAE 1/4'' & 5/16'') design. Compatible with R22, R12, R410, R32 systems, etc. (Not for Auto AC). Solid Brass Quarter-Turn Valve Anti-slip design increases friction to prevent overpowering. Rugged craftsmanship suitable for most equipment. Real Customer Feedback ★★★★★ "Saved me hours of work!" "I had a leaking valve on an R410A system. This tool allowed me to swap the core without losing the charge. Worth every penny." — Jason P. (Licensed HVAC Tech) ★★★★★ "Excellent quality for the price." "The brass feels solid and the ball valve is very smooth. Swapped my home AC valve in 5 minutes. No leaks!" — Mark R. (Homeowner) OUR GUARANTEE 📦 Insured Worldwide Shipping | 🔒 SSL Secure Checkout