R134A Valve Core Quick Remover & Installer Tool Set – 31-Piece AC Service Kit Keep your vehicle's air conditioning system running at peak performance with this comprehensive 31-piece R134A Valve Core Quick Remover & Installer Tool Set. Designed for automotive refrigeration and HVAC maintenance, this kit gives both DIYers and professional technicians everything needed to quickly and cleanly swap out valve cores on high- and low-pressure AC ports — without losing refrigerant or struggling with hard-to-reach fittings. Made in Mainland China. Key Features High & Low Pressure Quick Connectors: Includes a red high-pressure connector (16mm bottom ID) and a blue low-pressure connector (13mm bottom ID). Each features a side ball valve that opens and closes with a simple quarter-turn, effectively sealing the AC system to prevent refrigerant escape during valve core replacement. Premium Brass Construction: The main body is crafted from heavy-duty brass for exceptional strength and impact resistance. The valve stem is stainless steel, while the red and blue knobs are precision-machined aluminum — built to last through repeated professional use. Anti-Slip Ergonomic Grip: External knurled texture on all major components gives you a firm, confident hold even with gloved hands, reducing the chance of over-torquing sensitive valve threads. Easy, Intuitive Operation: Simply insert the tool into the valve port, engage the grab mechanism to capture the valve core, and turn. The strong magnetic/suction stem holds the valve core securely so you can install or remove it in seconds. Universal Compatibility: Adjustable for multiple valve core types, making it ideal for automotive AC systems, HVAC equipment, and R134A refrigeration maintenance. What's Included (31 Pieces) 2× R134A Valve Core Quick Removal Tools (1 High-Pressure / 1 Low-Pressure) 10× R134A Valve Cores 10× 5V1 Valve Cores 8× AC Service Port Caps 1× Double-Ended Valve Stem Removal Tool Specifications Material Brass body, Stainless Steel stem, Aluminum knobs, Plastic accents High-Pressure Port ID 16mm bottom ID (Red) Low-Pressure Port ID 13mm bottom ID (Blue) Refrigerant Compatibility R134A Total Pieces 31 Origin Mainland China Who Is This For? This tool set is perfect for auto mechanics, HVAC technicians, and hands-on car owners who want a reliable, professional-grade kit for R134A AC system servicing. Whether you're topping off refrigerant, diagnosing a leak, or performing a full valve core replacement, this kit simplifies every step. For guidance on safe refrigerant handling and environmental best practices, visit the U.S. EPA Section 608 Refrigerant Management page. Frequently Asked Questions Q: Is this R134A valve core remover tool compatible with both car AC and home HVAC systems? A: Yes. The valve core quick remover and installer tool set is designed for use with R134A refrigerant systems found in automotive AC and standard HVAC applications. The adjustable mechanism accommodates multiple valve core types, including the included R134A and 5V1 valve cores. Q: How does the ball valve prevent refrigerant leakage during valve core replacement? A: Each quick connector features a side-mounted ball valve that seals the port with a simple quarter-turn. This allows you to isolate the AC line before and after swapping the valve core, minimizing refrigerant release into the atmosphere during the service procedure. Q: What size ports do the high-pressure and low-pressure connectors fit? A: The red high-pressure connector has a 16mm bottom inner diameter, and the blue low-pressure connector has a 13mm bottom inner diameter — matching the standard R134A service port sizes found on most passenger vehicles. Q: Are replacement valve cores included in the kit? A: Absolutely. The 31-piece set includes 10 R134A valve cores, 10 5V1 valve cores, and 8 AC service port caps, so you have everything on hand to complete multiple service jobs right out of the box.