Tif Instruments 9600 4 Way Refrigerant Gauge Set - R-12 Glycerin Gauges Professional grade A/C manifold set for use with CFC/HCFC refrigerants such as R-12, R-22 and R-502 Brass only fittings for perfect sealing and durability Includes four long 72" high pressure hoses for a longer reach for reefers and larger vehicles Glycerin filled gauges eliminate needle vibration and rapid fluctuation 72" Black Evacuation Hose (1/4" FFL)