• Use for testing systems with the new R1234YF refrigerant
• Heavy duty anodized aluminum block with easy grip adjustment knobs
• Easy to read temperature scales on 3 1/8" gauge face Bar, PSI, F Deg., C Deg.
• 72 inch yellow hose with the special 1/2 x 16 left hand acme thread specifically for R1234YF tanks
• Optical sight glass for visual verification of refrigerant
• Hoses Gauges, and Couplers all meet SAE standards