General description The R410A R22 Valve Core Remover Tool is designed for efficiently removing and installing valve cores in HVAC systems. This dual-size tool is compatible with R410A and R22 systems, making it ideal for both standard and retrofit applications. Constructed from solid brass, it is durable and resistant to rust, featuring anti-slip knurled metal knobs for enhanced grip and ease of use. Technical specifications Item: Valve Core Remover Installer Service ports: 1/4 Inch and 5/16 Inch SAE Female Bypass ports: 1/4 Inch SAE Male Color: Yellow Material: Copper Package Contents: 1Pc Valve Core Remover Installer, 1Pc Valve Core Remover, 10Pcs 5V1 Valve Cores Measurement allowed error: +/- 1-3cm Installation Close the valve core wrench valve and disconnect the air conditioner internal connection before removing the valve core. Pull out the dead point on the stem and close the valve on the tool. Adjust the joint of the tool to the air conditioning interface and tighten the valve