The Mastercool Spark-Free Vacuum Pump 6 CFM is designed to efficiently remove air and moisture from HVAC and refrigeration systems, preparing them for proper charging and operation. This vacuum pump works by creating a deep vacuum within the system, drawing out unwanted gases, contaminants, and moisture that can affect performance and reliability. Its spark-free design makes it suitab... https://www.hnkparts.com/mastercool