Features: * new and high quality *Made of high quality material, durabl e and practical to use *Charging port adapter R12 port to accept R134a 'Quick Disconnect'. *Makes installation time-saving and effort-saving *Retrofit couplers high and low pressure Specification: *Low pressure connection: 1/4 SAE *High pressure connection: 1/4 SAE *Material: Metal and Plastic **Universal FitmentYes Package Contents: 1 x Blue Cap 1 x Red Cap 1 x Blue Low Side Quick Coupler 1 x Red High Side Quick Coupler Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.