• Gauges include R134a Fahrenheit scale in SAE and Kpa measurements
• Piston type free floating valves reduce O-ring wear
• Made of extruded aluminum for durability and long life
• Easy grip front facing knobs
• Anti-flutter gauges smooth out needle movement

Set includes 90 degree Snap-N-Seal couplers.  Other features include extra access port for vacuum line, extra large sight glass for visual check of refrigerant and gauges can be calibrated to maintain accuracy.