Mass Pro HVAC Tool AC Schrader Valve Core Remover Dual Size 5/16" 1/4" Port Installer Kit Tire Valve Stem Core  (Pack of 1)

The HVAC Valve Core Removal Installer Tool Kit is made of heavy duty solid brass, which is durable and won't rust easily. High Compatibility: Suitable for home refrigeration equipments, dual size sae 1/4'' & 5/16'' port makes the valve core remover tool be compatible with R410, R22, R12, R407, R404, R32 A/C air condition system, etc. (Not suitable for Automotive AC) Anti-Slip Design: The metal knobs are in anti-slip knurling design, which can increase hand friction.It is durable and reliable,prevent all kinds of overpowered valves; High-quality craftsmanship probes, rugged and durable, suitable for most equipment. Time-Saving: This AC Schrader Valve Core Removal Tool makes it easy to insert it into the inner valve, an external bypass port design can remove the valve cores easily, save hours of evacuation and charging time. Easy to Install: Use this hvac valve core remover tool, the valve core rod makes it be easily inserted into the inner valve core to control the valve core. you don't need to stop the machine and release the refrigerant.