The vacuum pump was tested and it works great. The Trade Pro 2 Stage 5.5CFM Vacuum Pump TP-5VP2 is a high-quality and efficient vacuum pump designed for professional use. With a powerful 5.5CFM capacity, this pump is capable of quickly and effectively removing air and moisture from HVAC systems, refrigeration units, and other applications. Its two-stage design ensures optimal performance and reliability, making it a reliable choice for any trade professional. The TP-5VP2 is built to last, with a durable construction and easy-to-use features that make it a valuable tool in any workshop or job site.