• Patented manual couplers adjust easily to R-134A service ports with varying dimensions
• All metal construction for extra durability, patented, spring loaded depressor will not damage service valves
• Can be removed from service ports regardless of knob position without losing refrigerant
• Meets SAE, UL and EPA recommendations for containment of refrigerant 
  
• Color Coded

R-134A rugged and durable high side coupler for professional technicians.