Check the listing for details. Yellow Jacket Manifold Gauge Set for HVAC. Color: Yellow, Condition: Used. Listed at 85.99 USD. The Yellow Jacket Manifold Gauge Set for HVAC is a professional tool designed for charging purposes in HVAC systems. Made by the trusted brand YELLOW JACKET, this set includes a manifold with 2 valves and gauges for measuring R-410a, R-404a, and R-22 refrigerants. The mechanical features and PSI vacuum units make it a reliable choice for HVAC technicians. With a 1-year manufacturer warranty and a yellow color design, this manifold gauge set is a valuable addition to any HVAC and refrigeration business. This item was bought at a storage unit bought at auction and has not had any testing done. Feel free to ask any questions.