Features The coolant pressure gauge has stable characteristics and high reliability, so you can use it with peace of mind. The pressure gauge for this coolant was upgraded and improved to withstand heavy use and accidental drops. The refrigerant pressure gauge can display the real-time system pressure, which is used for refrigerant filling of the air conditioning system. This is an easy to install coolant pressure gauge, which is convenient to replace a broken one. The coolant pressure gauge is suitable for the perfect combination of original equipment, widely used for R410A R22 R134a R404A. Specification: Item Type: Air Conditioning Pressure Gauge Model No.: HS-466NAL Application: R410A R22 R134a R404A Purpose: used for refrigerant filling in air conditioning system and displays system pressure in real time Package List: 1 x Coolant Pressure Gauge Package List 1 x Refrigerant Pressure Gauge