This valve core remover is manufactured from brass for durability and rust resistance, with an ergonomic design that provides a comfortable, non-slip grip during use. - Target users: professional HVAC technicians, equipment repair enthusiasts, and home users undertaking maintenance tasks. - Efficient, versatile design: features a double port with 1/4 and 5/16 sizes, suitable for HVAC systems that use refrigerants such as R22, R407c, R410A, and R404A. - Reliable compatibility: ideal for maintenance and replacement of valve cores in household air conditioners to ensure optimal performance. - Performance focus: built to support maintenance tasks that keep cooling systems operating effectively. 2-3 practical use scenarios - Home air conditioner maintenance: remove and replace valve cores during seasonal service or refrigerant handling to maintain proper operation. - On-site HVAC servicing: work with various equipment that uses 1/4 and 5/16 service valves, including systems using R22, R407c, R410A, or R404A. - DIY projects and repairs: convenient tool for hobbyists or small workshop tasks involving valve core service and replacement. Material and size highlights - Material: brass for durability and rust resistance. - Ports: double 1/4 and 5/16 sizes for compatibility with a range of HVAC service valves. - Performance: supports efficient valve core maintenance to help ensure system performance.