Mastercool R1234yf gauge set

R1234yf gauge set Features and Benefits: Heavy duty aluminum block Heavy duty manual couplers 72" 1234yf set of hoses Silicone dampened flutter free gauges for accurate pressure readings Optical sightglass for visual verification of refrigerant flow   R1234yf Aluminum manifold gauge set with heavy duty manual couplers and 72" set of hoses. Silicone dampened flutter free gauges for accurate pressure readings. Optical sight glass for visual verification of refrigerant flow. Packaged in Heavy duty clam shell.