Joywayus Low High R134a AC Quick Connectors System 1/4"-I shape, Red and Blue

Adjustable R134a Quick Coupler High Low Conversion 1/4 inch, red and blue

R12 to R134A Conversion Quick Connect Coupler Kit, High/Low 1/4 inch, Brass

Refrigerator Freon Recharge Hose Gauge Kit - A/C R134a R12 R22 R502 Fridge B

R1234YF Quick Coupler Kit, R1234yf to R134a Adapter + Valve Core

YSTOOL Automotive AC R134a Adjustable Quick Coupler Kit HVAC High Low blue

R1234YF Quick Coupler Kit, R1234yf to R134a Kit

AC R134a Quick Coupler Adapter, 90 Degree Angle High Low Connector Red/Blue