- Versatile Multifunctional AC Gauge Set: This 3-way automotive air conditioning diagnostic manifold gauge set is designed for professional use and is compatible with R1234YF, R134A, and R404A refrigerants. It is perfect for AC freon charging, evacuation, diagnostic checks, and recovery tasks, making it suitable for auto air conditioners, household AC units, and compressors. - Precision Gauges with Clear Readability: Equipped with extra-large, color-coded dials in Fahrenheit, this gauge set offers excellent visibility and accurate measurements. The high-pressure gauge (red) measures up to 500 PSI, while the low-pressure gauge (blue) extends to 350 PSI. The integrated sight glass allows for easy monitoring of refrigerant flow during charging. - Durable and High-Quality Construction: Made from robust brass and aluminum materials, this manifold gauge set is built to endure heavy use and accidental drops, providing strong protection against rust and corrosion. The oil-filled core minimizes wear and shock, while the dry dial ensures dependable performance in cold weather. - Complete Set with Color-Coded Hoses: This gauge set includes three durable 5-foot hoses, each rated for a working pressure of 600 PSI and a burst pressure of 3000 PSI. The reinforced, color-coded hoses (red, blue, yellow) feature 45-degree bends for easy access. The set comes with quick couplers, a self-sealing can tap, and adapters for straightforward setup, making it a comprehensive solution for HVAC maintenance. - Practical Applications: Ideal for automotive technicians performing AC repairs, HVAC professionals servicing home air conditioning systems, and DIY enthusiasts looking to manage refrigerant levels effectively. This gauge set ensures accurate diagnostics and reliable performance, making it an essential tool for anyone involved in AC maintenance.