WIDE COMPATIBILITY - This R1234YF quick coupler fits for R1234YF/R12 to R134A car air-conditioning AC charging. - High quality R1234YF to R134A hose adapter with strong construction to highly working performance, long lasting to use. EASY INSTALLATION - Push & Lock coupler with auto shut off, easy and convenient to use. DIMENSION - R1234YF Quick Coupler: Low side R1234yf coupler 14 mm female x 1/4 inchSAE male. R12 to R134a Adapter: 1/4 inch SAE female x low pressure 13mm R134A quick coupler. Color: blue + yellow + silver Material: Aluminum alloy Package Contents: 1* fluorinated quick connector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.