WIDE COMPATIBILITY - This R1234YF quick coupler fits for R1234YF/R12 to R134A car air-conditioning AC charging. PREMIUM QUALITY - R1234YF to R134A hose adapter with strong construction to ensure highly working performance, long lasting to use. EASY INSTALLATION - Push and 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 and yellow and silver Material: Aluminum alloy Size: total length 6.5cm Package Contents: 1 x fluorinated quick connector Only the above package content, other products are not included. Note: Light reflection 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.