Compatible with 4 Types of Refrigerants: Our professional four-way manifold gauge set is compatible with R134A, R12, and R410A refrigerants. The AC gauge set is suitable for automotive car HVAC, household air-conditioning, and refrigerator maintenance. You can easily enjoy the DIY operation process at home.

4 PCS Reinforced Hoses: Our ultra-long 5-foot Freon hoses come in a set of four and are made of PVC with four reinforced layers. They can withstand pressures of up to 800 psi, with a burst pressure of 4000 psi. Plus, the hose interface is equipped with anti-slip sealing gaskets that prevent loosening during operation, greatly reducing the risk of leakage and waste.

Accurate and Precise Gauges: This gauge combines a dry and liquid-filled design with a dry dial to improve winter performance. The calibration screws ensure ±1.6% accuracy, and Fahrenheit temperature units make for easy reading. Plus, the sight glass design allows you to see the flowing liquid refrigerant during filling.

Sturdy Build for Endurance: This heavy-duty AC gauge set is made of solid brass, aluminum, PVC, and plastic, ensuring strength, longevity, and sealing. The tools have been designed and tested for durability.